Home / 1,124.24-1,551.33-626.90

Finding the Fourth Proportional to 1,124.24, 1,551.33 and 626.90

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Solution

The fourth proportional to 1,124.24, 1,551.33 and 626.90 is: 865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.24 : 1,551.33 = 626.90 : x
  2. Step 2: Convert to fraction form
    1,124.24/1,551.33 = 626.90/x
  3. Step 3: Cross multiply
    1,124.24x = 1,551.33 × 626.90
  4. Step 4: Simplify right side
    1,124.24x = 972,521.02
  5. Step 5: Solve for x
    x = 972,521.02/1,124.24
  6. Step 6: Final answer
    x = 865.05

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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.