Home / 5,135.91-7,702.72-1,437.15

Finding the Fourth Proportional to 5,135.91, 7,702.72 and 1,437.15

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Solution

The fourth proportional to 5,135.91, 7,702.72 and 1,437.15 is: 2,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135.91 : 7,702.72 = 1,437.15 : x
  2. Step 2: Convert to fraction form
    5,135.91/7,702.72 = 1,437.15/x
  3. Step 3: Cross multiply
    5,135.91x = 7,702.72 × 1,437.15
  4. Step 4: Simplify right side
    5,135.91x = 11,069,964.05
  5. Step 5: Solve for x
    x = 11,069,964.05/5,135.91
  6. Step 6: Final answer
    x = 2,155.40

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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.