Home / 2,607.11-3,908.50-1,219.71

Finding the Fourth Proportional to 2,607.11, 3,908.50 and 1,219.71

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Solution

The fourth proportional to 2,607.11, 3,908.50 and 1,219.71 is: 1,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,607.11 : 3,908.50 = 1,219.71 : x
  2. Step 2: Convert to fraction form
    2,607.11/3,908.50 = 1,219.71/x
  3. Step 3: Cross multiply
    2,607.11x = 3,908.50 × 1,219.71
  4. Step 4: Simplify right side
    2,607.11x = 4,767,233.49
  5. Step 5: Solve for x
    x = 4,767,233.49/2,607.11
  6. Step 6: Final answer
    x = 1,828.55

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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.