Home / 7,577.31-10,456.69-4,220.77

Finding the Fourth Proportional to 7,577.31, 10,456.69 and 4,220.77

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Solution

The fourth proportional to 7,577.31, 10,456.69 and 4,220.77 is: 5,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,577.31 : 10,456.69 = 4,220.77 : x
  2. Step 2: Convert to fraction form
    7,577.31/10,456.69 = 4,220.77/x
  3. Step 3: Cross multiply
    7,577.31x = 10,456.69 × 4,220.77
  4. Step 4: Simplify right side
    7,577.31x = 44,135,283.45
  5. Step 5: Solve for x
    x = 44,135,283.45/7,577.31
  6. Step 6: Final answer
    x = 5,824.66

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Half scale
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Double scale
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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.