Home / 5,621.28-8,432.48-1,725.76

Finding the Fourth Proportional to 5,621.28, 8,432.48 and 1,725.76

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Solution

The fourth proportional to 5,621.28, 8,432.48 and 1,725.76 is: 2,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.28 : 8,432.48 = 1,725.76 : x
  2. Step 2: Convert to fraction form
    5,621.28/8,432.48 = 1,725.76/x
  3. Step 3: Cross multiply
    5,621.28x = 8,432.48 × 1,725.76
  4. Step 4: Simplify right side
    5,621.28x = 14,552,436.68
  5. Step 5: Solve for x
    x = 14,552,436.68/5,621.28
  6. Step 6: Final answer
    x = 2,588.81

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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.