Home / 1,150.19-1,587.26-626.21

Finding the Fourth Proportional to 1,150.19, 1,587.26 and 626.21

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Solution

The fourth proportional to 1,150.19, 1,587.26 and 626.21 is: 864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.19 : 1,587.26 = 626.21 : x
  2. Step 2: Convert to fraction form
    1,150.19/1,587.26 = 626.21/x
  3. Step 3: Cross multiply
    1,150.19x = 1,587.26 × 626.21
  4. Step 4: Simplify right side
    1,150.19x = 993,947.02
  5. Step 5: Solve for x
    x = 993,947.02/1,150.19
  6. Step 6: Final answer
    x = 864.16

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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.