Home / 5,615.45-7,752.65-4,992.71

Finding the Fourth Proportional to 5,615.45, 7,752.65 and 4,992.71

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Solution

The fourth proportional to 5,615.45, 7,752.65 and 4,992.71 is: 6,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.45 : 7,752.65 = 4,992.71 : x
  2. Step 2: Convert to fraction form
    5,615.45/7,752.65 = 4,992.71/x
  3. Step 3: Cross multiply
    5,615.45x = 7,752.65 × 4,992.71
  4. Step 4: Simplify right side
    5,615.45x = 38,706,727.60
  5. Step 5: Solve for x
    x = 38,706,727.60/5,615.45
  6. Step 6: Final answer
    x = 6,892.90

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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.