Home / 2,931.26-4,397.48-1,082.39

Finding the Fourth Proportional to 2,931.26, 4,397.48 and 1,082.39

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Solution

The fourth proportional to 2,931.26, 4,397.48 and 1,082.39 is: 1,623.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.26 : 4,397.48 = 1,082.39 : x
  2. Step 2: Convert to fraction form
    2,931.26/4,397.48 = 1,082.39/x
  3. Step 3: Cross multiply
    2,931.26x = 4,397.48 × 1,082.39
  4. Step 4: Simplify right side
    2,931.26x = 4,759,760.98
  5. Step 5: Solve for x
    x = 4,759,760.98/2,931.26
  6. Step 6: Final answer
    x = 1,623.80

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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.