Home / 4,990.33-7,485.52-1,292.30

Finding the Fourth Proportional to 4,990.33, 7,485.52 and 1,292.30

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Solution

The fourth proportional to 4,990.33, 7,485.52 and 1,292.30 is: 1,938.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.33 : 7,485.52 = 1,292.30 : x
  2. Step 2: Convert to fraction form
    4,990.33/7,485.52 = 1,292.30/x
  3. Step 3: Cross multiply
    4,990.33x = 7,485.52 × 1,292.30
  4. Step 4: Simplify right side
    4,990.33x = 9,673,537.50
  5. Step 5: Solve for x
    x = 9,673,537.50/4,990.33
  6. Step 6: Final answer
    x = 1,938.46

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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.