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Finding the Fourth Proportional to 3,576.93, 5,366.88 and 1,931.55

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Solution

The fourth proportional to 3,576.93, 5,366.88 and 1,931.55 is: 2,898.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.93 : 5,366.88 = 1,931.55 : x
  2. Step 2: Convert to fraction form
    3,576.93/5,366.88 = 1,931.55/x
  3. Step 3: Cross multiply
    3,576.93x = 5,366.88 × 1,931.55
  4. Step 4: Simplify right side
    3,576.93x = 10,366,397.06
  5. Step 5: Solve for x
    x = 10,366,397.06/3,576.93
  6. Step 6: Final answer
    x = 2,898.13

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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.