Home / 2,669.30-3,999.29-1,557.17

Finding the Fourth Proportional to 2,669.30, 3,999.29 and 1,557.17

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Solution

The fourth proportional to 2,669.30, 3,999.29 and 1,557.17 is: 2,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.30 : 3,999.29 = 1,557.17 : x
  2. Step 2: Convert to fraction form
    2,669.30/3,999.29 = 1,557.17/x
  3. Step 3: Cross multiply
    2,669.30x = 3,999.29 × 1,557.17
  4. Step 4: Simplify right side
    2,669.30x = 6,227,546.63
  5. Step 5: Solve for x
    x = 6,227,546.63/2,669.30
  6. Step 6: Final answer
    x = 2,333.03

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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.