Home / 2,571.40-3,549.30-1,577.32

Finding the Fourth Proportional to 2,571.40, 3,549.30 and 1,577.32

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Solution

The fourth proportional to 2,571.40, 3,549.30 and 1,577.32 is: 2,177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.40 : 3,549.30 = 1,577.32 : x
  2. Step 2: Convert to fraction form
    2,571.40/3,549.30 = 1,577.32/x
  3. Step 3: Cross multiply
    2,571.40x = 3,549.30 × 1,577.32
  4. Step 4: Simplify right side
    2,571.40x = 5,598,381.88
  5. Step 5: Solve for x
    x = 5,598,381.88/2,571.40
  6. Step 6: Final answer
    x = 2,177.17

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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.