Home / 1,591.19-2,386.67-713.75

Finding the Fourth Proportional to 1,591.19, 2,386.67 and 713.75

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Solution

The fourth proportional to 1,591.19, 2,386.67 and 713.75 is: 1,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.19 : 2,386.67 = 713.75 : x
  2. Step 2: Convert to fraction form
    1,591.19/2,386.67 = 713.75/x
  3. Step 3: Cross multiply
    1,591.19x = 2,386.67 × 713.75
  4. Step 4: Simplify right side
    1,591.19x = 1,703,470.21
  5. Step 5: Solve for x
    x = 1,703,470.21/1,591.19
  6. Step 6: Final answer
    x = 1,070.56

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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.