Home / 1,856.40-2,559.78-1,360.68

Finding the Fourth Proportional to 1,856.40, 2,559.78 and 1,360.68

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Solution

The fourth proportional to 1,856.40, 2,559.78 and 1,360.68 is: 1,876.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.40 : 2,559.78 = 1,360.68 : x
  2. Step 2: Convert to fraction form
    1,856.40/2,559.78 = 1,360.68/x
  3. Step 3: Cross multiply
    1,856.40x = 2,559.78 × 1,360.68
  4. Step 4: Simplify right side
    1,856.40x = 3,483,041.45
  5. Step 5: Solve for x
    x = 3,483,041.45/1,856.40
  6. Step 6: Final answer
    x = 1,876.23

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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.