Home / 7,124.24-9,831.42-3,937.70

Finding the Fourth Proportional to 7,124.24, 9,831.42 and 3,937.70

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Solution

The fourth proportional to 7,124.24, 9,831.42 and 3,937.70 is: 5,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.24 : 9,831.42 = 3,937.70 : x
  2. Step 2: Convert to fraction form
    7,124.24/9,831.42 = 3,937.70/x
  3. Step 3: Cross multiply
    7,124.24x = 9,831.42 × 3,937.70
  4. Step 4: Simplify right side
    7,124.24x = 38,713,133.38
  5. Step 5: Solve for x
    x = 38,713,133.38/7,124.24
  6. Step 6: Final answer
    x = 5,434.01

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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.