Home / 7,340.52-10,129.76-3,983.28

Finding the Fourth Proportional to 7,340.52, 10,129.76 and 3,983.28

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Solution

The fourth proportional to 7,340.52, 10,129.76 and 3,983.28 is: 5,496.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.52 : 10,129.76 = 3,983.28 : x
  2. Step 2: Convert to fraction form
    7,340.52/10,129.76 = 3,983.28/x
  3. Step 3: Cross multiply
    7,340.52x = 10,129.76 × 3,983.28
  4. Step 4: Simplify right side
    7,340.52x = 40,349,670.41
  5. Step 5: Solve for x
    x = 40,349,670.41/7,340.52
  6. Step 6: Final answer
    x = 5,496.84

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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.