Home / 5,283.72-7,924.68-1,388.16

Finding the Fourth Proportional to 5,283.72, 7,924.68 and 1,388.16

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Solution

The fourth proportional to 5,283.72, 7,924.68 and 1,388.16 is: 2,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.72 : 7,924.68 = 1,388.16 : x
  2. Step 2: Convert to fraction form
    5,283.72/7,924.68 = 1,388.16/x
  3. Step 3: Cross multiply
    5,283.72x = 7,924.68 × 1,388.16
  4. Step 4: Simplify right side
    5,283.72x = 11,000,723.79
  5. Step 5: Solve for x
    x = 11,000,723.79/5,283.72
  6. Step 6: Final answer
    x = 2,082.00

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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.