Home / 3,215.28-4,437.02-1,798.88

Finding the Fourth Proportional to 3,215.28, 4,437.02 and 1,798.88

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Solution

The fourth proportional to 3,215.28, 4,437.02 and 1,798.88 is: 2,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.28 : 4,437.02 = 1,798.88 : x
  2. Step 2: Convert to fraction form
    3,215.28/4,437.02 = 1,798.88/x
  3. Step 3: Cross multiply
    3,215.28x = 4,437.02 × 1,798.88
  4. Step 4: Simplify right side
    3,215.28x = 7,981,666.54
  5. Step 5: Solve for x
    x = 7,981,666.54/3,215.28
  6. Step 6: Final answer
    x = 2,482.42

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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.