Home / 3,529.61-5,294.47-1,680.35

Finding the Fourth Proportional to 3,529.61, 5,294.47 and 1,680.35

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Solution

The fourth proportional to 3,529.61, 5,294.47 and 1,680.35 is: 2,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.61 : 5,294.47 = 1,680.35 : x
  2. Step 2: Convert to fraction form
    3,529.61/5,294.47 = 1,680.35/x
  3. Step 3: Cross multiply
    3,529.61x = 5,294.47 × 1,680.35
  4. Step 4: Simplify right side
    3,529.61x = 8,896,562.66
  5. Step 5: Solve for x
    x = 8,896,562.66/3,529.61
  6. Step 6: Final answer
    x = 2,520.55

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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.