Home / 1,417.23-2,126.13-551.54

Finding the Fourth Proportional to 1,417.23, 2,126.13 and 551.54

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Solution

The fourth proportional to 1,417.23, 2,126.13 and 551.54 is: 827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.23 : 2,126.13 = 551.54 : x
  2. Step 2: Convert to fraction form
    1,417.23/2,126.13 = 551.54/x
  3. Step 3: Cross multiply
    1,417.23x = 2,126.13 × 551.54
  4. Step 4: Simplify right side
    1,417.23x = 1,172,635.11
  5. Step 5: Solve for x
    x = 1,172,635.11/1,417.23
  6. Step 6: Final answer
    x = 827.41

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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.