Home / 5,312.01-7,332.63-3,989.55

Finding the Fourth Proportional to 5,312.01, 7,332.63 and 3,989.55

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Solution

The fourth proportional to 5,312.01, 7,332.63 and 3,989.55 is: 5,507.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.01 : 7,332.63 = 3,989.55 : x
  2. Step 2: Convert to fraction form
    5,312.01/7,332.63 = 3,989.55/x
  3. Step 3: Cross multiply
    5,312.01x = 7,332.63 × 3,989.55
  4. Step 4: Simplify right side
    5,312.01x = 29,253,894.02
  5. Step 5: Solve for x
    x = 29,253,894.02/5,312.01
  6. Step 6: Final answer
    x = 5,507.12

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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.