Home / 5,498.24-7,588.40-3,140.80

Finding the Fourth Proportional to 5,498.24, 7,588.40 and 3,140.80

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Solution

The fourth proportional to 5,498.24, 7,588.40 and 3,140.80 is: 4,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,498.24 : 7,588.40 = 3,140.80 : x
  2. Step 2: Convert to fraction form
    5,498.24/7,588.40 = 3,140.80/x
  3. Step 3: Cross multiply
    5,498.24x = 7,588.40 × 3,140.80
  4. Step 4: Simplify right side
    5,498.24x = 23,833,646.72
  5. Step 5: Solve for x
    x = 23,833,646.72/5,498.24
  6. Step 6: Final answer
    x = 4,334.78

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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.