Home / 3,519.16-4,849.63-2,678.53

Finding the Fourth Proportional to 3,519.16, 4,849.63 and 2,678.53

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Solution

The fourth proportional to 3,519.16, 4,849.63 and 2,678.53 is: 3,691.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.16 : 4,849.63 = 2,678.53 : x
  2. Step 2: Convert to fraction form
    3,519.16/4,849.63 = 2,678.53/x
  3. Step 3: Cross multiply
    3,519.16x = 4,849.63 × 2,678.53
  4. Step 4: Simplify right side
    3,519.16x = 12,989,869.72
  5. Step 5: Solve for x
    x = 12,989,869.72/3,519.16
  6. Step 6: Final answer
    x = 3,691.19

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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.