Home / 3,209.02-4,424.41-2,678.65

Finding the Fourth Proportional to 3,209.02, 4,424.41 and 2,678.65

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Solution

The fourth proportional to 3,209.02, 4,424.41 and 2,678.65 is: 3,693.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.02 : 4,424.41 = 2,678.65 : x
  2. Step 2: Convert to fraction form
    3,209.02/4,424.41 = 2,678.65/x
  3. Step 3: Cross multiply
    3,209.02x = 4,424.41 × 2,678.65
  4. Step 4: Simplify right side
    3,209.02x = 11,851,445.85
  5. Step 5: Solve for x
    x = 11,851,445.85/3,209.02
  6. Step 6: Final answer
    x = 3,693.17

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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.