Home / 5,567.76-7,678.44-3,995.28

Finding the Fourth Proportional to 5,567.76, 7,678.44 and 3,995.28

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Solution

The fourth proportional to 5,567.76, 7,678.44 and 3,995.28 is: 5,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,567.76 : 7,678.44 = 3,995.28 : x
  2. Step 2: Convert to fraction form
    5,567.76/7,678.44 = 3,995.28/x
  3. Step 3: Cross multiply
    5,567.76x = 7,678.44 × 3,995.28
  4. Step 4: Simplify right side
    5,567.76x = 30,677,517.76
  5. Step 5: Solve for x
    x = 30,677,517.76/5,567.76
  6. Step 6: Final answer
    x = 5,509.85

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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.