Home / 1,360.24-2,041.80-1,039.12

Finding the Fourth Proportional to 1,360.24, 2,041.80 and 1,039.12

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Solution

The fourth proportional to 1,360.24, 2,041.80 and 1,039.12 is: 1,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.24 : 2,041.80 = 1,039.12 : x
  2. Step 2: Convert to fraction form
    1,360.24/2,041.80 = 1,039.12/x
  3. Step 3: Cross multiply
    1,360.24x = 2,041.80 × 1,039.12
  4. Step 4: Simplify right side
    1,360.24x = 2,121,675.22
  5. Step 5: Solve for x
    x = 2,121,675.22/1,360.24
  6. Step 6: Final answer
    x = 1,559.78

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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.