Home / 3,653.68-5,479.52-1,432.16

Finding the Fourth Proportional to 3,653.68, 5,479.52 and 1,432.16

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Solution

The fourth proportional to 3,653.68, 5,479.52 and 1,432.16 is: 2,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.68 : 5,479.52 = 1,432.16 : x
  2. Step 2: Convert to fraction form
    3,653.68/5,479.52 = 1,432.16/x
  3. Step 3: Cross multiply
    3,653.68x = 5,479.52 × 1,432.16
  4. Step 4: Simplify right side
    3,653.68x = 7,847,549.36
  5. Step 5: Solve for x
    x = 7,847,549.36/3,653.68
  6. Step 6: Final answer
    x = 2,147.85

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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.