Home / 3,520.43-5,280.49-1,439.74

Finding the Fourth Proportional to 3,520.43, 5,280.49 and 1,439.74

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Solution

The fourth proportional to 3,520.43, 5,280.49 and 1,439.74 is: 2,159.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.43 : 5,280.49 = 1,439.74 : x
  2. Step 2: Convert to fraction form
    3,520.43/5,280.49 = 1,439.74/x
  3. Step 3: Cross multiply
    3,520.43x = 5,280.49 × 1,439.74
  4. Step 4: Simplify right side
    3,520.43x = 7,602,541.07
  5. Step 5: Solve for x
    x = 7,602,541.07/3,520.43
  6. Step 6: Final answer
    x = 2,159.55

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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.