Home / 5,239.40-7,230.18-2,881.52

Finding the Fourth Proportional to 5,239.40, 7,230.18 and 2,881.52

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Solution

The fourth proportional to 5,239.40, 7,230.18 and 2,881.52 is: 3,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.40 : 7,230.18 = 2,881.52 : x
  2. Step 2: Convert to fraction form
    5,239.40/7,230.18 = 2,881.52/x
  3. Step 3: Cross multiply
    5,239.40x = 7,230.18 × 2,881.52
  4. Step 4: Simplify right side
    5,239.40x = 20,833,908.27
  5. Step 5: Solve for x
    x = 20,833,908.27/5,239.40
  6. Step 6: Final answer
    x = 3,976.39

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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.