Home / 5,424.55-7,485.93-3,187.15

Finding the Fourth Proportional to 5,424.55, 7,485.93 and 3,187.15

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Solution

The fourth proportional to 5,424.55, 7,485.93 and 3,187.15 is: 4,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.55 : 7,485.93 = 3,187.15 : x
  2. Step 2: Convert to fraction form
    5,424.55/7,485.93 = 3,187.15/x
  3. Step 3: Cross multiply
    5,424.55x = 7,485.93 × 3,187.15
  4. Step 4: Simplify right side
    5,424.55x = 23,858,781.80
  5. Step 5: Solve for x
    x = 23,858,781.80/5,424.55
  6. Step 6: Final answer
    x = 4,398.30

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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.