Home / 2,235.42-3,084.90-1,240.71

Finding the Fourth Proportional to 2,235.42, 3,084.90 and 1,240.71

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Solution

The fourth proportional to 2,235.42, 3,084.90 and 1,240.71 is: 1,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.42 : 3,084.90 = 1,240.71 : x
  2. Step 2: Convert to fraction form
    2,235.42/3,084.90 = 1,240.71/x
  3. Step 3: Cross multiply
    2,235.42x = 3,084.90 × 1,240.71
  4. Step 4: Simplify right side
    2,235.42x = 3,827,466.28
  5. Step 5: Solve for x
    x = 3,827,466.28/2,235.42
  6. Step 6: Final answer
    x = 1,712.19

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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.