Home / 1,521.02-2,097.09-1,256.52

Finding the Fourth Proportional to 1,521.02, 2,097.09 and 1,256.52

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Solution

The fourth proportional to 1,521.02, 2,097.09 and 1,256.52 is: 1,732.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521.02 : 2,097.09 = 1,256.52 : x
  2. Step 2: Convert to fraction form
    1,521.02/2,097.09 = 1,256.52/x
  3. Step 3: Cross multiply
    1,521.02x = 2,097.09 × 1,256.52
  4. Step 4: Simplify right side
    1,521.02x = 2,635,035.53
  5. Step 5: Solve for x
    x = 2,635,035.53/1,521.02
  6. Step 6: Final answer
    x = 1,732.42

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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.