Home / 5,440.80-7,500.36-3,842.47

Finding the Fourth Proportional to 5,440.80, 7,500.36 and 3,842.47

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Solution

The fourth proportional to 5,440.80, 7,500.36 and 3,842.47 is: 5,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.80 : 7,500.36 = 3,842.47 : x
  2. Step 2: Convert to fraction form
    5,440.80/7,500.36 = 3,842.47/x
  3. Step 3: Cross multiply
    5,440.80x = 7,500.36 × 3,842.47
  4. Step 4: Simplify right side
    5,440.80x = 28,819,932.07
  5. Step 5: Solve for x
    x = 28,819,932.07/5,440.80
  6. Step 6: Final answer
    x = 5,297.00

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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.