Home / 2,281.68-3,421.20-2,008.32

Finding the Fourth Proportional to 2,281.68, 3,421.20 and 2,008.32

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Solution

The fourth proportional to 2,281.68, 3,421.20 and 2,008.32 is: 3,011.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.68 : 3,421.20 = 2,008.32 : x
  2. Step 2: Convert to fraction form
    2,281.68/3,421.20 = 2,008.32/x
  3. Step 3: Cross multiply
    2,281.68x = 3,421.20 × 2,008.32
  4. Step 4: Simplify right side
    2,281.68x = 6,870,864.38
  5. Step 5: Solve for x
    x = 6,870,864.38/2,281.68
  6. Step 6: Final answer
    x = 3,011.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.