Home / 3,005.28-4,507.20-1,543.68

Finding the Fourth Proportional to 3,005.28, 4,507.20 and 1,543.68

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Solution

The fourth proportional to 3,005.28, 4,507.20 and 1,543.68 is: 2,315.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,005.28 : 4,507.20 = 1,543.68 : x
  2. Step 2: Convert to fraction form
    3,005.28/4,507.20 = 1,543.68/x
  3. Step 3: Cross multiply
    3,005.28x = 4,507.20 × 1,543.68
  4. Step 4: Simplify right side
    3,005.28x = 6,957,674.50
  5. Step 5: Solve for x
    x = 6,957,674.50/3,005.28
  6. Step 6: Final answer
    x = 2,315.15

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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.