Home / 1,260.28-1,739.04-1,167.40

Finding the Fourth Proportional to 1,260.28, 1,739.04 and 1,167.40

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Solution

The fourth proportional to 1,260.28, 1,739.04 and 1,167.40 is: 1,610.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.28 : 1,739.04 = 1,167.40 : x
  2. Step 2: Convert to fraction form
    1,260.28/1,739.04 = 1,167.40/x
  3. Step 3: Cross multiply
    1,260.28x = 1,739.04 × 1,167.40
  4. Step 4: Simplify right side
    1,260.28x = 2,030,155.30
  5. Step 5: Solve for x
    x = 2,030,155.30/1,260.28
  6. Step 6: Final answer
    x = 1,610.88

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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.