Home / 1,360.95-2,040.30-581.55

Finding the Fourth Proportional to 1,360.95, 2,040.30 and 581.55

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Solution

The fourth proportional to 1,360.95, 2,040.30 and 581.55 is: 871.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.95 : 2,040.30 = 581.55 : x
  2. Step 2: Convert to fraction form
    1,360.95/2,040.30 = 581.55/x
  3. Step 3: Cross multiply
    1,360.95x = 2,040.30 × 581.55
  4. Step 4: Simplify right side
    1,360.95x = 1,186,536.47
  5. Step 5: Solve for x
    x = 1,186,536.47/1,360.95
  6. Step 6: Final answer
    x = 871.84

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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.