Home / 1,440.57-1,985.36-1,046.91

Finding the Fourth Proportional to 1,440.57, 1,985.36 and 1,046.91

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Solution

The fourth proportional to 1,440.57, 1,985.36 and 1,046.91 is: 1,442.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.57 : 1,985.36 = 1,046.91 : x
  2. Step 2: Convert to fraction form
    1,440.57/1,985.36 = 1,046.91/x
  3. Step 3: Cross multiply
    1,440.57x = 1,985.36 × 1,046.91
  4. Step 4: Simplify right side
    1,440.57x = 2,078,488.00
  5. Step 5: Solve for x
    x = 2,078,488.00/1,440.57
  6. Step 6: Final answer
    x = 1,442.82

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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.