Home / 1,732.85-2,391.39-1,312.46

Finding the Fourth Proportional to 1,732.85, 2,391.39 and 1,312.46

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Solution

The fourth proportional to 1,732.85, 2,391.39 and 1,312.46 is: 1,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.85 : 2,391.39 = 1,312.46 : x
  2. Step 2: Convert to fraction form
    1,732.85/2,391.39 = 1,312.46/x
  3. Step 3: Cross multiply
    1,732.85x = 2,391.39 × 1,312.46
  4. Step 4: Simplify right side
    1,732.85x = 3,138,603.72
  5. Step 5: Solve for x
    x = 3,138,603.72/1,732.85
  6. Step 6: Final answer
    x = 1,811.24

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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.