Home / 4,990.08-7,485.15-1,292.06

Finding the Fourth Proportional to 4,990.08, 7,485.15 and 1,292.06

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Solution

The fourth proportional to 4,990.08, 7,485.15 and 1,292.06 is: 1,938.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.08 : 7,485.15 = 1,292.06 : x
  2. Step 2: Convert to fraction form
    4,990.08/7,485.15 = 1,292.06/x
  3. Step 3: Cross multiply
    4,990.08x = 7,485.15 × 1,292.06
  4. Step 4: Simplify right side
    4,990.08x = 9,671,225.48
  5. Step 5: Solve for x
    x = 9,671,225.48/4,990.08
  6. Step 6: Final answer
    x = 1,938.09

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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.