Home / 1,807.50-2,713.66-1,418.70

Finding the Fourth Proportional to 1,807.50, 2,713.66 and 1,418.70

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Solution

The fourth proportional to 1,807.50, 2,713.66 and 1,418.70 is: 2,129.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.50 : 2,713.66 = 1,418.70 : x
  2. Step 2: Convert to fraction form
    1,807.50/2,713.66 = 1,418.70/x
  3. Step 3: Cross multiply
    1,807.50x = 2,713.66 × 1,418.70
  4. Step 4: Simplify right side
    1,807.50x = 3,849,869.44
  5. Step 5: Solve for x
    x = 3,849,869.44/1,807.50
  6. Step 6: Final answer
    x = 2,129.94

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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.