Home / 1,861.47-2,567.66-1,114.92

Finding the Fourth Proportional to 1,861.47, 2,567.66 and 1,114.92

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Solution

The fourth proportional to 1,861.47, 2,567.66 and 1,114.92 is: 1,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.47 : 2,567.66 = 1,114.92 : x
  2. Step 2: Convert to fraction form
    1,861.47/2,567.66 = 1,114.92/x
  3. Step 3: Cross multiply
    1,861.47x = 2,567.66 × 1,114.92
  4. Step 4: Simplify right side
    1,861.47x = 2,862,729.91
  5. Step 5: Solve for x
    x = 2,862,729.91/1,861.47
  6. Step 6: Final answer
    x = 1,537.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.