Home / 3,891.18-5,368.98-2,548.74

Finding the Fourth Proportional to 3,891.18, 5,368.98 and 2,548.74

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Solution

The fourth proportional to 3,891.18, 5,368.98 and 2,548.74 is: 3,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.18 : 5,368.98 = 2,548.74 : x
  2. Step 2: Convert to fraction form
    3,891.18/5,368.98 = 2,548.74/x
  3. Step 3: Cross multiply
    3,891.18x = 5,368.98 × 2,548.74
  4. Step 4: Simplify right side
    3,891.18x = 13,684,134.09
  5. Step 5: Solve for x
    x = 13,684,134.09/3,891.18
  6. Step 6: Final answer
    x = 3,516.71

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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.