Home / 2,045.95-2,821.44-1,298.57

Finding the Fourth Proportional to 2,045.95, 2,821.44 and 1,298.57

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Solution

The fourth proportional to 2,045.95, 2,821.44 and 1,298.57 is: 1,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.95 : 2,821.44 = 1,298.57 : x
  2. Step 2: Convert to fraction form
    2,045.95/2,821.44 = 1,298.57/x
  3. Step 3: Cross multiply
    2,045.95x = 2,821.44 × 1,298.57
  4. Step 4: Simplify right side
    2,045.95x = 3,663,837.34
  5. Step 5: Solve for x
    x = 3,663,837.34/2,045.95
  6. Step 6: Final answer
    x = 1,790.78

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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.