Home / 5,530.32-7,632.36-3,140.82

Finding the Fourth Proportional to 5,530.32, 7,632.36 and 3,140.82

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Solution

The fourth proportional to 5,530.32, 7,632.36 and 3,140.82 is: 4,334.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.32 : 7,632.36 = 3,140.82 : x
  2. Step 2: Convert to fraction form
    5,530.32/7,632.36 = 3,140.82/x
  3. Step 3: Cross multiply
    5,530.32x = 7,632.36 × 3,140.82
  4. Step 4: Simplify right side
    5,530.32x = 23,971,868.94
  5. Step 5: Solve for x
    x = 23,971,868.94/5,530.32
  6. Step 6: Final answer
    x = 4,334.63

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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.