Home / 5,145.65-7,718.47-2,371.50

Finding the Fourth Proportional to 5,145.65, 7,718.47 and 2,371.50

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Solution

The fourth proportional to 5,145.65, 7,718.47 and 2,371.50 is: 3,557.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.65 : 7,718.47 = 2,371.50 : x
  2. Step 2: Convert to fraction form
    5,145.65/7,718.47 = 2,371.50/x
  3. Step 3: Cross multiply
    5,145.65x = 7,718.47 × 2,371.50
  4. Step 4: Simplify right side
    5,145.65x = 18,304,354.57
  5. Step 5: Solve for x
    x = 18,304,354.57/5,145.65
  6. Step 6: Final answer
    x = 3,557.25

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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.