Home / 1,601.16-2,401.20-860.34

Finding the Fourth Proportional to 1,601.16, 2,401.20 and 860.34

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Solution

The fourth proportional to 1,601.16, 2,401.20 and 860.34 is: 1,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.16 : 2,401.20 = 860.34 : x
  2. Step 2: Convert to fraction form
    1,601.16/2,401.20 = 860.34/x
  3. Step 3: Cross multiply
    1,601.16x = 2,401.20 × 860.34
  4. Step 4: Simplify right side
    1,601.16x = 2,065,848.41
  5. Step 5: Solve for x
    x = 2,065,848.41/1,601.16
  6. Step 6: Final answer
    x = 1,290.22

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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.