Home / 5,630.87-7,770.44-3,078.53

Finding the Fourth Proportional to 5,630.87, 7,770.44 and 3,078.53

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Solution

The fourth proportional to 5,630.87, 7,770.44 and 3,078.53 is: 4,248.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,630.87 : 7,770.44 = 3,078.53 : x
  2. Step 2: Convert to fraction form
    5,630.87/7,770.44 = 3,078.53/x
  3. Step 3: Cross multiply
    5,630.87x = 7,770.44 × 3,078.53
  4. Step 4: Simplify right side
    5,630.87x = 23,921,478.41
  5. Step 5: Solve for x
    x = 23,921,478.41/5,630.87
  6. Step 6: Final answer
    x = 4,248.28

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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.