Home / 5,439.24-8,154.57-2,319.75

Finding the Fourth Proportional to 5,439.24, 8,154.57 and 2,319.75

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Solution

The fourth proportional to 5,439.24, 8,154.57 and 2,319.75 is: 3,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,439.24 : 8,154.57 = 2,319.75 : x
  2. Step 2: Convert to fraction form
    5,439.24/8,154.57 = 2,319.75/x
  3. Step 3: Cross multiply
    5,439.24x = 8,154.57 × 2,319.75
  4. Step 4: Simplify right side
    5,439.24x = 18,916,563.76
  5. Step 5: Solve for x
    x = 18,916,563.76/5,439.24
  6. Step 6: Final answer
    x = 3,477.80

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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.