Home / 1,347.48-1,859.76-1,285.92

Finding the Fourth Proportional to 1,347.48, 1,859.76 and 1,285.92

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Solution

The fourth proportional to 1,347.48, 1,859.76 and 1,285.92 is: 1,774.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.48 : 1,859.76 = 1,285.92 : x
  2. Step 2: Convert to fraction form
    1,347.48/1,859.76 = 1,285.92/x
  3. Step 3: Cross multiply
    1,347.48x = 1,859.76 × 1,285.92
  4. Step 4: Simplify right side
    1,347.48x = 2,391,502.58
  5. Step 5: Solve for x
    x = 2,391,502.58/1,347.48
  6. Step 6: Final answer
    x = 1,774.80

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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.