Home / 4,759.28-6,561.51-3,905.40

Finding the Fourth Proportional to 4,759.28, 6,561.51 and 3,905.40

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Solution

The fourth proportional to 4,759.28, 6,561.51 and 3,905.40 is: 5,384.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,759.28 : 6,561.51 = 3,905.40 : x
  2. Step 2: Convert to fraction form
    4,759.28/6,561.51 = 3,905.40/x
  3. Step 3: Cross multiply
    4,759.28x = 6,561.51 × 3,905.40
  4. Step 4: Simplify right side
    4,759.28x = 25,625,321.15
  5. Step 5: Solve for x
    x = 25,625,321.15/4,759.28
  6. Step 6: Final answer
    x = 5,384.29

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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.