Home / 3,577.20-4,937.40-2,790.96

Finding the Fourth Proportional to 3,577.20, 4,937.40 and 2,790.96

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Solution

The fourth proportional to 3,577.20, 4,937.40 and 2,790.96 is: 3,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.20 : 4,937.40 = 2,790.96 : x
  2. Step 2: Convert to fraction form
    3,577.20/4,937.40 = 2,790.96/x
  3. Step 3: Cross multiply
    3,577.20x = 4,937.40 × 2,790.96
  4. Step 4: Simplify right side
    3,577.20x = 13,780,085.90
  5. Step 5: Solve for x
    x = 13,780,085.90/3,577.20
  6. Step 6: Final answer
    x = 3,852.20

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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.