Home / 1,442.15-2,159.07-847.37

Finding the Fourth Proportional to 1,442.15, 2,159.07 and 847.37

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Solution

The fourth proportional to 1,442.15, 2,159.07 and 847.37 is: 1,268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.15 : 2,159.07 = 847.37 : x
  2. Step 2: Convert to fraction form
    1,442.15/2,159.07 = 847.37/x
  3. Step 3: Cross multiply
    1,442.15x = 2,159.07 × 847.37
  4. Step 4: Simplify right side
    1,442.15x = 1,829,531.15
  5. Step 5: Solve for x
    x = 1,829,531.15/1,442.15
  6. Step 6: Final answer
    x = 1,268.61

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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.