Home / 3,876.96-5,344.02-2,970.57

Finding the Fourth Proportional to 3,876.96, 5,344.02 and 2,970.57

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Solution

The fourth proportional to 3,876.96, 5,344.02 and 2,970.57 is: 4,094.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.96 : 5,344.02 = 2,970.57 : x
  2. Step 2: Convert to fraction form
    3,876.96/5,344.02 = 2,970.57/x
  3. Step 3: Cross multiply
    3,876.96x = 5,344.02 × 2,970.57
  4. Step 4: Simplify right side
    3,876.96x = 15,874,785.49
  5. Step 5: Solve for x
    x = 15,874,785.49/3,876.96
  6. Step 6: Final answer
    x = 4,094.65

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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.