Home / 1,856.15-2,778.76-1,371.37

Finding the Fourth Proportional to 1,856.15, 2,778.76 and 1,371.37

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Solution

The fourth proportional to 1,856.15, 2,778.76 and 1,371.37 is: 2,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.15 : 2,778.76 = 1,371.37 : x
  2. Step 2: Convert to fraction form
    1,856.15/2,778.76 = 1,371.37/x
  3. Step 3: Cross multiply
    1,856.15x = 2,778.76 × 1,371.37
  4. Step 4: Simplify right side
    1,856.15x = 3,810,701.24
  5. Step 5: Solve for x
    x = 3,810,701.24/1,856.15
  6. Step 6: Final answer
    x = 2,053.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.