Home / 1,360.31-2,040.72-580.29

Finding the Fourth Proportional to 1,360.31, 2,040.72 and 580.29

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Solution

The fourth proportional to 1,360.31, 2,040.72 and 580.29 is: 870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.31 : 2,040.72 = 580.29 : x
  2. Step 2: Convert to fraction form
    1,360.31/2,040.72 = 580.29/x
  3. Step 3: Cross multiply
    1,360.31x = 2,040.72 × 580.29
  4. Step 4: Simplify right side
    1,360.31x = 1,184,209.41
  5. Step 5: Solve for x
    x = 1,184,209.41/1,360.31
  6. Step 6: Final answer
    x = 870.55

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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.