Home / 1,856.46-2,562.75-1,158.78

Finding the Fourth Proportional to 1,856.46, 2,562.75 and 1,158.78

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Solution

The fourth proportional to 1,856.46, 2,562.75 and 1,158.78 is: 1,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.46 : 2,562.75 = 1,158.78 : x
  2. Step 2: Convert to fraction form
    1,856.46/2,562.75 = 1,158.78/x
  3. Step 3: Cross multiply
    1,856.46x = 2,562.75 × 1,158.78
  4. Step 4: Simplify right side
    1,856.46x = 2,969,663.45
  5. Step 5: Solve for x
    x = 2,969,663.45/1,856.46
  6. Step 6: Final answer
    x = 1,599.64

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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.