Home / 1,234.02-1,701.56-1,117.38

Finding the Fourth Proportional to 1,234.02, 1,701.56 and 1,117.38

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Solution

The fourth proportional to 1,234.02, 1,701.56 and 1,117.38 is: 1,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.02 : 1,701.56 = 1,117.38 : x
  2. Step 2: Convert to fraction form
    1,234.02/1,701.56 = 1,117.38/x
  3. Step 3: Cross multiply
    1,234.02x = 1,701.56 × 1,117.38
  4. Step 4: Simplify right side
    1,234.02x = 1,901,289.11
  5. Step 5: Solve for x
    x = 1,901,289.11/1,234.02
  6. Step 6: Final answer
    x = 1,540.73

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Half scale
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Double scale
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1.5x scale

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.