Home / 2,234.16-3,082.99-1,225.71

Finding the Fourth Proportional to 2,234.16, 3,082.99 and 1,225.71

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Solution

The fourth proportional to 2,234.16, 3,082.99 and 1,225.71 is: 1,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.16 : 3,082.99 = 1,225.71 : x
  2. Step 2: Convert to fraction form
    2,234.16/3,082.99 = 1,225.71/x
  3. Step 3: Cross multiply
    2,234.16x = 3,082.99 × 1,225.71
  4. Step 4: Simplify right side
    2,234.16x = 3,778,838.79
  5. Step 5: Solve for x
    x = 3,778,838.79/2,234.16
  6. Step 6: Final answer
    x = 1,691.39

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Half scale
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Double scale
Find fourth proportional to 2,235.16, 3,084.37 and 1,226.71
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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.