Home / 2,184.92-3,014.90-1,240.78

Finding the Fourth Proportional to 2,184.92, 3,014.90 and 1,240.78

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Solution

The fourth proportional to 2,184.92, 3,014.90 and 1,240.78 is: 1,712.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.92 : 3,014.90 = 1,240.78 : x
  2. Step 2: Convert to fraction form
    2,184.92/3,014.90 = 1,240.78/x
  3. Step 3: Cross multiply
    2,184.92x = 3,014.90 × 1,240.78
  4. Step 4: Simplify right side
    2,184.92x = 3,740,827.62
  5. Step 5: Solve for x
    x = 3,740,827.62/2,184.92
  6. Step 6: Final answer
    x = 1,712.11

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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.