Home / 1,232.34-1,695.76-1,225.59

Finding the Fourth Proportional to 1,232.34, 1,695.76 and 1,225.59

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Solution

The fourth proportional to 1,232.34, 1,695.76 and 1,225.59 is: 1,686.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.34 : 1,695.76 = 1,225.59 : x
  2. Step 2: Convert to fraction form
    1,232.34/1,695.76 = 1,225.59/x
  3. Step 3: Cross multiply
    1,232.34x = 1,695.76 × 1,225.59
  4. Step 4: Simplify right side
    1,232.34x = 2,078,306.50
  5. Step 5: Solve for x
    x = 2,078,306.50/1,232.34
  6. Step 6: Final answer
    x = 1,686.47

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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.