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Finding the Fourth Proportional to 7,124.53, 10,685.88 and 2,963.76

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Solution

The fourth proportional to 7,124.53, 10,685.88 and 2,963.76 is: 4,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.53 : 10,685.88 = 2,963.76 : x
  2. Step 2: Convert to fraction form
    7,124.53/10,685.88 = 2,963.76/x
  3. Step 3: Cross multiply
    7,124.53x = 10,685.88 × 2,963.76
  4. Step 4: Simplify right side
    7,124.53x = 31,670,383.71
  5. Step 5: Solve for x
    x = 31,670,383.71/7,124.53
  6. Step 6: Final answer
    x = 4,445.26

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1.5x scale

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.