Home / 1,531.29-2,296.67-435.72

Finding the Fourth Proportional to 1,531.29, 2,296.67 and 435.72

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Solution

The fourth proportional to 1,531.29, 2,296.67 and 435.72 is: 653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531.29 : 2,296.67 = 435.72 : x
  2. Step 2: Convert to fraction form
    1,531.29/2,296.67 = 435.72/x
  3. Step 3: Cross multiply
    1,531.29x = 2,296.67 × 435.72
  4. Step 4: Simplify right side
    1,531.29x = 1,000,702.87
  5. Step 5: Solve for x
    x = 1,000,702.87/1,531.29
  6. Step 6: Final answer
    x = 653.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.