Home / 3,557.80-4,909.76-1,964.48

Finding the Fourth Proportional to 3,557.80, 4,909.76 and 1,964.48

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Solution

The fourth proportional to 3,557.80, 4,909.76 and 1,964.48 is: 2,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.80 : 4,909.76 = 1,964.48 : x
  2. Step 2: Convert to fraction form
    3,557.80/4,909.76 = 1,964.48/x
  3. Step 3: Cross multiply
    3,557.80x = 4,909.76 × 1,964.48
  4. Step 4: Simplify right side
    3,557.80x = 9,645,125.32
  5. Step 5: Solve for x
    x = 9,645,125.32/3,557.80
  6. Step 6: Final answer
    x = 2,710.98

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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.