Home / 3,557.56-4,908.98-1,985.72

Finding the Fourth Proportional to 3,557.56, 4,908.98 and 1,985.72

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Solution

The fourth proportional to 3,557.56, 4,908.98 and 1,985.72 is: 2,740.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.56 : 4,908.98 = 1,985.72 : x
  2. Step 2: Convert to fraction form
    3,557.56/4,908.98 = 1,985.72/x
  3. Step 3: Cross multiply
    3,557.56x = 4,908.98 × 1,985.72
  4. Step 4: Simplify right side
    3,557.56x = 9,747,859.77
  5. Step 5: Solve for x
    x = 9,747,859.77/3,557.56
  6. Step 6: Final answer
    x = 2,740.04

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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.