Home / 1,856.31-2,562.66-1,261.95

Finding the Fourth Proportional to 1,856.31, 2,562.66 and 1,261.95

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Solution

The fourth proportional to 1,856.31, 2,562.66 and 1,261.95 is: 1,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.31 : 2,562.66 = 1,261.95 : x
  2. Step 2: Convert to fraction form
    1,856.31/2,562.66 = 1,261.95/x
  3. Step 3: Cross multiply
    1,856.31x = 2,562.66 × 1,261.95
  4. Step 4: Simplify right side
    1,856.31x = 3,233,948.79
  5. Step 5: Solve for x
    x = 3,233,948.79/1,856.31
  6. Step 6: Final answer
    x = 1,742.14

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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.