Home / 3,730.88-5,146.08-2,158.76

Finding the Fourth Proportional to 3,730.88, 5,146.08 and 2,158.76

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Solution

The fourth proportional to 3,730.88, 5,146.08 and 2,158.76 is: 2,977.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.88 : 5,146.08 = 2,158.76 : x
  2. Step 2: Convert to fraction form
    3,730.88/5,146.08 = 2,158.76/x
  3. Step 3: Cross multiply
    3,730.88x = 5,146.08 × 2,158.76
  4. Step 4: Simplify right side
    3,730.88x = 11,109,151.66
  5. Step 5: Solve for x
    x = 11,109,151.66/3,730.88
  6. Step 6: Final answer
    x = 2,977.62

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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.