Home / 1,856.06-2,560.55-1,109.65

Finding the Fourth Proportional to 1,856.06, 2,560.55 and 1,109.65

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Solution

The fourth proportional to 1,856.06, 2,560.55 and 1,109.65 is: 1,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.06 : 2,560.55 = 1,109.65 : x
  2. Step 2: Convert to fraction form
    1,856.06/2,560.55 = 1,109.65/x
  3. Step 3: Cross multiply
    1,856.06x = 2,560.55 × 1,109.65
  4. Step 4: Simplify right side
    1,856.06x = 2,841,295.96
  5. Step 5: Solve for x
    x = 2,841,295.96/1,856.06
  6. Step 6: Final answer
    x = 1,530.82

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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.