Home / 3,428.85-5,140.98-1,577.46

Finding the Fourth Proportional to 3,428.85, 5,140.98 and 1,577.46

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Solution

The fourth proportional to 3,428.85, 5,140.98 and 1,577.46 is: 2,365.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.85 : 5,140.98 = 1,577.46 : x
  2. Step 2: Convert to fraction form
    3,428.85/5,140.98 = 1,577.46/x
  3. Step 3: Cross multiply
    3,428.85x = 5,140.98 × 1,577.46
  4. Step 4: Simplify right side
    3,428.85x = 8,109,690.31
  5. Step 5: Solve for x
    x = 8,109,690.31/3,428.85
  6. Step 6: Final answer
    x = 2,365.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.