Home / 4,876.42-6,724.26-3,931.21

Finding the Fourth Proportional to 4,876.42, 6,724.26 and 3,931.21

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Solution

The fourth proportional to 4,876.42, 6,724.26 and 3,931.21 is: 5,420.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,876.42 : 6,724.26 = 3,931.21 : x
  2. Step 2: Convert to fraction form
    4,876.42/6,724.26 = 3,931.21/x
  3. Step 3: Cross multiply
    4,876.42x = 6,724.26 × 3,931.21
  4. Step 4: Simplify right side
    4,876.42x = 26,434,478.15
  5. Step 5: Solve for x
    x = 26,434,478.15/4,876.42
  6. Step 6: Final answer
    x = 5,420.88

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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.