Home / 1,046.79-1,442.61-913.75

Finding the Fourth Proportional to 1,046.79, 1,442.61 and 913.75

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Solution

The fourth proportional to 1,046.79, 1,442.61 and 913.75 is: 1,259.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.79 : 1,442.61 = 913.75 : x
  2. Step 2: Convert to fraction form
    1,046.79/1,442.61 = 913.75/x
  3. Step 3: Cross multiply
    1,046.79x = 1,442.61 × 913.75
  4. Step 4: Simplify right side
    1,046.79x = 1,318,181.28
  5. Step 5: Solve for x
    x = 1,318,181.28/1,046.79
  6. Step 6: Final answer
    x = 1,259.26

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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.