Home / 5,621.20-8,426.40-4,371.10

Finding the Fourth Proportional to 5,621.20, 8,426.40 and 4,371.10

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Solution

The fourth proportional to 5,621.20, 8,426.40 and 4,371.10 is: 6,552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.20 : 8,426.40 = 4,371.10 : x
  2. Step 2: Convert to fraction form
    5,621.20/8,426.40 = 4,371.10/x
  3. Step 3: Cross multiply
    5,621.20x = 8,426.40 × 4,371.10
  4. Step 4: Simplify right side
    5,621.20x = 36,832,637.04
  5. Step 5: Solve for x
    x = 36,832,637.04/5,621.20
  6. Step 6: Final answer
    x = 6,552.45

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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.