Home / 1,844.95-2,545.30-1,215.80

Finding the Fourth Proportional to 1,844.95, 2,545.30 and 1,215.80

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Solution

The fourth proportional to 1,844.95, 2,545.30 and 1,215.80 is: 1,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.95 : 2,545.30 = 1,215.80 : x
  2. Step 2: Convert to fraction form
    1,844.95/2,545.30 = 1,215.80/x
  3. Step 3: Cross multiply
    1,844.95x = 2,545.30 × 1,215.80
  4. Step 4: Simplify right side
    1,844.95x = 3,094,575.74
  5. Step 5: Solve for x
    x = 3,094,575.74/1,844.95
  6. Step 6: Final answer
    x = 1,677.32

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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.