Home / 5,187.46-7,158.40-2,949.02

Finding the Fourth Proportional to 5,187.46, 7,158.40 and 2,949.02

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Solution

The fourth proportional to 5,187.46, 7,158.40 and 2,949.02 is: 4,069.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.46 : 7,158.40 = 2,949.02 : x
  2. Step 2: Convert to fraction form
    5,187.46/7,158.40 = 2,949.02/x
  3. Step 3: Cross multiply
    5,187.46x = 7,158.40 × 2,949.02
  4. Step 4: Simplify right side
    5,187.46x = 21,110,264.77
  5. Step 5: Solve for x
    x = 21,110,264.77/5,187.46
  6. Step 6: Final answer
    x = 4,069.48

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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.