Home / 5,493.40-8,240.70-5,320.60

Finding the Fourth Proportional to 5,493.40, 8,240.70 and 5,320.60

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Solution

The fourth proportional to 5,493.40, 8,240.70 and 5,320.60 is: 7,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,493.40 : 8,240.70 = 5,320.60 : x
  2. Step 2: Convert to fraction form
    5,493.40/8,240.70 = 5,320.60/x
  3. Step 3: Cross multiply
    5,493.40x = 8,240.70 × 5,320.60
  4. Step 4: Simplify right side
    5,493.40x = 43,845,468.42
  5. Step 5: Solve for x
    x = 43,845,468.42/5,493.40
  6. Step 6: Final answer
    x = 7,981.48

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1.5x scale

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.