Home / 2,669.55-3,999.66-1,557.42

Finding the Fourth Proportional to 2,669.55, 3,999.66 and 1,557.42

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Solution

The fourth proportional to 2,669.55, 3,999.66 and 1,557.42 is: 2,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.55 : 3,999.66 = 1,557.42 : x
  2. Step 2: Convert to fraction form
    2,669.55/3,999.66 = 1,557.42/x
  3. Step 3: Cross multiply
    2,669.55x = 3,999.66 × 1,557.42
  4. Step 4: Simplify right side
    2,669.55x = 6,229,150.48
  5. Step 5: Solve for x
    x = 6,229,150.48/2,669.55
  6. Step 6: Final answer
    x = 2,333.41

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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.