Home / 1,150.18-1,587.26-626.20

Finding the Fourth Proportional to 1,150.18, 1,587.26 and 626.20

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Solution

The fourth proportional to 1,150.18, 1,587.26 and 626.20 is: 864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150.18 : 1,587.26 = 626.20 : x
  2. Step 2: Convert to fraction form
    1,150.18/1,587.26 = 626.20/x
  3. Step 3: Cross multiply
    1,150.18x = 1,587.26 × 626.20
  4. Step 4: Simplify right side
    1,150.18x = 993,939.81
  5. Step 5: Solve for x
    x = 993,939.81/1,150.18
  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.