Home / 1,537.00-2,120.13-1,116.86

Finding the Fourth Proportional to 1,537.00, 2,120.13 and 1,116.86

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Solution

The fourth proportional to 1,537.00, 2,120.13 and 1,116.86 is: 1,540.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537.00 : 2,120.13 = 1,116.86 : x
  2. Step 2: Convert to fraction form
    1,537.00/2,120.13 = 1,116.86/x
  3. Step 3: Cross multiply
    1,537.00x = 2,120.13 × 1,116.86
  4. Step 4: Simplify right side
    1,537.00x = 2,367,877.79
  5. Step 5: Solve for x
    x = 2,367,877.79/1,537.00
  6. Step 6: Final answer
    x = 1,540.59

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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.