Home / 3,200.80-4,417.10-1,803.56

Finding the Fourth Proportional to 3,200.80, 4,417.10 and 1,803.56

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Solution

The fourth proportional to 3,200.80, 4,417.10 and 1,803.56 is: 2,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,200.80 : 4,417.10 = 1,803.56 : x
  2. Step 2: Convert to fraction form
    3,200.80/4,417.10 = 1,803.56/x
  3. Step 3: Cross multiply
    3,200.80x = 4,417.10 × 1,803.56
  4. Step 4: Simplify right side
    3,200.80x = 7,966,504.88
  5. Step 5: Solve for x
    x = 7,966,504.88/3,200.80
  6. Step 6: Final answer
    x = 2,488.91

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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.