Home / 5,240.18-7,860.40-1,542.54

Finding the Fourth Proportional to 5,240.18, 7,860.40 and 1,542.54

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Solution

The fourth proportional to 5,240.18, 7,860.40 and 1,542.54 is: 2,313.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.18 : 7,860.40 = 1,542.54 : x
  2. Step 2: Convert to fraction form
    5,240.18/7,860.40 = 1,542.54/x
  3. Step 3: Cross multiply
    5,240.18x = 7,860.40 × 1,542.54
  4. Step 4: Simplify right side
    5,240.18x = 12,124,968.14
  5. Step 5: Solve for x
    x = 12,124,968.14/5,240.18
  6. Step 6: Final answer
    x = 2,313.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.