Home / 5,240.72-7,861.08-2,318.24

Finding the Fourth Proportional to 5,240.72, 7,861.08 and 2,318.24

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Solution

The fourth proportional to 5,240.72, 7,861.08 and 2,318.24 is: 3,477.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.72 : 7,861.08 = 2,318.24 : x
  2. Step 2: Convert to fraction form
    5,240.72/7,861.08 = 2,318.24/x
  3. Step 3: Cross multiply
    5,240.72x = 7,861.08 × 2,318.24
  4. Step 4: Simplify right side
    5,240.72x = 18,223,870.10
  5. Step 5: Solve for x
    x = 18,223,870.10/5,240.72
  6. Step 6: Final answer
    x = 3,477.36

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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.