Home / 1,869.95-2,580.92-1,240.52

Finding the Fourth Proportional to 1,869.95, 2,580.92 and 1,240.52

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Solution

The fourth proportional to 1,869.95, 2,580.92 and 1,240.52 is: 1,712.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.95 : 2,580.92 = 1,240.52 : x
  2. Step 2: Convert to fraction form
    1,869.95/2,580.92 = 1,240.52/x
  3. Step 3: Cross multiply
    1,869.95x = 2,580.92 × 1,240.52
  4. Step 4: Simplify right side
    1,869.95x = 3,201,682.88
  5. Step 5: Solve for x
    x = 3,201,682.88/1,869.95
  6. Step 6: Final answer
    x = 1,712.18

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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.