Home / 5,346.48-7,378.38-2,988.62

Finding the Fourth Proportional to 5,346.48, 7,378.38 and 2,988.62

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Solution

The fourth proportional to 5,346.48, 7,378.38 and 2,988.62 is: 4,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,346.48 : 7,378.38 = 2,988.62 : x
  2. Step 2: Convert to fraction form
    5,346.48/7,378.38 = 2,988.62/x
  3. Step 3: Cross multiply
    5,346.48x = 7,378.38 × 2,988.62
  4. Step 4: Simplify right side
    5,346.48x = 22,051,174.04
  5. Step 5: Solve for x
    x = 22,051,174.04/5,346.48
  6. Step 6: Final answer
    x = 4,124.43

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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.