Home / 1,124.11-1,551.28-626.77

Finding the Fourth Proportional to 1,124.11, 1,551.28 and 626.77

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Solution

The fourth proportional to 1,124.11, 1,551.28 and 626.77 is: 864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124.11 : 1,551.28 = 626.77 : x
  2. Step 2: Convert to fraction form
    1,124.11/1,551.28 = 626.77/x
  3. Step 3: Cross multiply
    1,124.11x = 1,551.28 × 626.77
  4. Step 4: Simplify right side
    1,124.11x = 972,297.31
  5. Step 5: Solve for x
    x = 972,297.31/1,124.11
  6. Step 6: Final answer
    x = 864.95

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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.