Home / 5,386.72-8,082.78-1,924.24

Finding the Fourth Proportional to 5,386.72, 8,082.78 and 1,924.24

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Solution

The fourth proportional to 5,386.72, 8,082.78 and 1,924.24 is: 2,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,386.72 : 8,082.78 = 1,924.24 : x
  2. Step 2: Convert to fraction form
    5,386.72/8,082.78 = 1,924.24/x
  3. Step 3: Cross multiply
    5,386.72x = 8,082.78 × 1,924.24
  4. Step 4: Simplify right side
    5,386.72x = 15,553,208.59
  5. Step 5: Solve for x
    x = 15,553,208.59/5,386.72
  6. Step 6: Final answer
    x = 2,887.32

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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.