Home / 7,146.90-9,862.29-4,003.02

Finding the Fourth Proportional to 7,146.90, 9,862.29 and 4,003.02

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Solution

The fourth proportional to 7,146.90, 9,862.29 and 4,003.02 is: 5,523.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.90 : 9,862.29 = 4,003.02 : x
  2. Step 2: Convert to fraction form
    7,146.90/9,862.29 = 4,003.02/x
  3. Step 3: Cross multiply
    7,146.90x = 9,862.29 × 4,003.02
  4. Step 4: Simplify right side
    7,146.90x = 39,478,944.12
  5. Step 5: Solve for x
    x = 39,478,944.12/7,146.90
  6. Step 6: Final answer
    x = 5,523.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.