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Finding the Fourth Proportional to 4,990.06, 7,485.90 and 1,526.50

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Solution

The fourth proportional to 4,990.06, 7,485.90 and 1,526.50 is: 2,290.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.06 : 7,485.90 = 1,526.50 : x
  2. Step 2: Convert to fraction form
    4,990.06/7,485.90 = 1,526.50/x
  3. Step 3: Cross multiply
    4,990.06x = 7,485.90 × 1,526.50
  4. Step 4: Simplify right side
    4,990.06x = 11,427,226.35
  5. Step 5: Solve for x
    x = 11,427,226.35/4,990.06
  6. Step 6: Final answer
    x = 2,290.00

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.