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Finding the Fourth Proportional to 5,661.43, 8,526.02 and 5,156.39

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Solution

The fourth proportional to 5,661.43, 8,526.02 and 5,156.39 is: 7,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.43 : 8,526.02 = 5,156.39 : x
  2. Step 2: Convert to fraction form
    5,661.43/8,526.02 = 5,156.39/x
  3. Step 3: Cross multiply
    5,661.43x = 8,526.02 × 5,156.39
  4. Step 4: Simplify right side
    5,661.43x = 43,963,479.80
  5. Step 5: Solve for x
    x = 43,963,479.80/5,661.43
  6. Step 6: Final answer
    x = 7,765.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.