Home / 3,286.79-4,535.89-1,870.61

Finding the Fourth Proportional to 3,286.79, 4,535.89 and 1,870.61

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Solution

The fourth proportional to 3,286.79, 4,535.89 and 1,870.61 is: 2,581.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.79 : 4,535.89 = 1,870.61 : x
  2. Step 2: Convert to fraction form
    3,286.79/4,535.89 = 1,870.61/x
  3. Step 3: Cross multiply
    3,286.79x = 4,535.89 × 1,870.61
  4. Step 4: Simplify right side
    3,286.79x = 8,484,881.19
  5. Step 5: Solve for x
    x = 8,484,881.19/3,286.79
  6. Step 6: Final answer
    x = 2,581.51

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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.