Home / 4,242.24-5,849.28-3,931.20

Finding the Fourth Proportional to 4,242.24, 5,849.28 and 3,931.20

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Solution

The fourth proportional to 4,242.24, 5,849.28 and 3,931.20 is: 5,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.24 : 5,849.28 = 3,931.20 : x
  2. Step 2: Convert to fraction form
    4,242.24/5,849.28 = 3,931.20/x
  3. Step 3: Cross multiply
    4,242.24x = 5,849.28 × 3,931.20
  4. Step 4: Simplify right side
    4,242.24x = 22,994,689.54
  5. Step 5: Solve for x
    x = 22,994,689.54/4,242.24
  6. Step 6: Final answer
    x = 5,420.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.