Home / 4,320-5,961.76-2,457.28

Finding the Fourth Proportional to 4,320, 5,961.76 and 2,457.28

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Solution

The fourth proportional to 4,320, 5,961.76 and 2,457.28 is: 3,391.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320 : 5,961.76 = 2,457.28 : x
  2. Step 2: Convert to fraction form
    4,320/5,961.76 = 2,457.28/x
  3. Step 3: Cross multiply
    4,320x = 5,961.76 × 2,457.28
  4. Step 4: Simplify right side
    4,320x = 14,649,713.61
  5. Step 5: Solve for x
    x = 14,649,713.61/4,320
  6. Step 6: Final answer
    x = 3,391.14

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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.