Home / 2,280.17-3,416.85-1,240.71

Finding the Fourth Proportional to 2,280.17, 3,416.85 and 1,240.71

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Solution

The fourth proportional to 2,280.17, 3,416.85 and 1,240.71 is: 1,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.17 : 3,416.85 = 1,240.71 : x
  2. Step 2: Convert to fraction form
    2,280.17/3,416.85 = 1,240.71/x
  3. Step 3: Cross multiply
    2,280.17x = 3,416.85 × 1,240.71
  4. Step 4: Simplify right side
    2,280.17x = 4,239,319.96
  5. Step 5: Solve for x
    x = 4,239,319.96/2,280.17
  6. Step 6: Final answer
    x = 1,859.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.