Home / 7,577.20-10,456.56-4,219.84

Finding the Fourth Proportional to 7,577.20, 10,456.56 and 4,219.84

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Solution

The fourth proportional to 7,577.20, 10,456.56 and 4,219.84 is: 5,823.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,577.20 : 10,456.56 = 4,219.84 : x
  2. Step 2: Convert to fraction form
    7,577.20/10,456.56 = 4,219.84/x
  3. Step 3: Cross multiply
    7,577.20x = 10,456.56 × 4,219.84
  4. Step 4: Simplify right side
    7,577.20x = 44,125,010.15
  5. Step 5: Solve for x
    x = 44,125,010.15/7,577.20
  6. Step 6: Final answer
    x = 5,823.39

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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.