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Finding the Fourth Proportional to 2,521.71, 3,479.13 and 1,526.61

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Solution

The fourth proportional to 2,521.71, 3,479.13 and 1,526.61 is: 2,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.71 : 3,479.13 = 1,526.61 : x
  2. Step 2: Convert to fraction form
    2,521.71/3,479.13 = 1,526.61/x
  3. Step 3: Cross multiply
    2,521.71x = 3,479.13 × 1,526.61
  4. Step 4: Simplify right side
    2,521.71x = 5,311,274.65
  5. Step 5: Solve for x
    x = 5,311,274.65/2,521.71
  6. Step 6: Final answer
    x = 2,106.22

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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.