Home / 5,429.80-7,492.49-3,039.90

Finding the Fourth Proportional to 5,429.80, 7,492.49 and 3,039.90

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Solution

The fourth proportional to 5,429.80, 7,492.49 and 3,039.90 is: 4,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.80 : 7,492.49 = 3,039.90 : x
  2. Step 2: Convert to fraction form
    5,429.80/7,492.49 = 3,039.90/x
  3. Step 3: Cross multiply
    5,429.80x = 7,492.49 × 3,039.90
  4. Step 4: Simplify right side
    5,429.80x = 22,776,386.42
  5. Step 5: Solve for x
    x = 22,776,386.42/5,429.80
  6. Step 6: Final answer
    x = 4,194.70

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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.