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Finding the Fourth Proportional to 5,117.62, 7,677.06 and 1,831.06

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Solution

The fourth proportional to 5,117.62, 7,677.06 and 1,831.06 is: 2,746.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.62 : 7,677.06 = 1,831.06 : x
  2. Step 2: Convert to fraction form
    5,117.62/7,677.06 = 1,831.06/x
  3. Step 3: Cross multiply
    5,117.62x = 7,677.06 × 1,831.06
  4. Step 4: Simplify right side
    5,117.62x = 14,057,157.48
  5. Step 5: Solve for x
    x = 14,057,157.48/5,117.62
  6. Step 6: Final answer
    x = 2,746.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.