Home / 3,521.47-5,290.40-2,061.65

Finding the Fourth Proportional to 3,521.47, 5,290.40 and 2,061.65

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Solution

The fourth proportional to 3,521.47, 5,290.40 and 2,061.65 is: 3,097.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.47 : 5,290.40 = 2,061.65 : x
  2. Step 2: Convert to fraction form
    3,521.47/5,290.40 = 2,061.65/x
  3. Step 3: Cross multiply
    3,521.47x = 5,290.40 × 2,061.65
  4. Step 4: Simplify right side
    3,521.47x = 10,906,931.86
  5. Step 5: Solve for x
    x = 10,906,931.86/3,521.47
  6. Step 6: Final answer
    x = 3,097.27

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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.