Home / 5,346.40-7,378.05-2,988.49

Finding the Fourth Proportional to 5,346.40, 7,378.05 and 2,988.49

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Solution

The fourth proportional to 5,346.40, 7,378.05 and 2,988.49 is: 4,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,346.40 : 7,378.05 = 2,988.49 : x
  2. Step 2: Convert to fraction form
    5,346.40/7,378.05 = 2,988.49/x
  3. Step 3: Cross multiply
    5,346.40x = 7,378.05 × 2,988.49
  4. Step 4: Simplify right side
    5,346.40x = 22,049,191.75
  5. Step 5: Solve for x
    x = 22,049,191.75/5,346.40
  6. Step 6: Final answer
    x = 4,124.12

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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.