Home / 3,542.55-4,888.80-1,970.88

Finding the Fourth Proportional to 3,542.55, 4,888.80 and 1,970.88

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Solution

The fourth proportional to 3,542.55, 4,888.80 and 1,970.88 is: 2,719.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.55 : 4,888.80 = 1,970.88 : x
  2. Step 2: Convert to fraction form
    3,542.55/4,888.80 = 1,970.88/x
  3. Step 3: Cross multiply
    3,542.55x = 4,888.80 × 1,970.88
  4. Step 4: Simplify right side
    3,542.55x = 9,635,238.14
  5. Step 5: Solve for x
    x = 9,635,238.14/3,542.55
  6. Step 6: Final answer
    x = 2,719.86

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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.