Home / 3,870.06-5,806.53-1,531.20

Finding the Fourth Proportional to 3,870.06, 5,806.53 and 1,531.20

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Solution

The fourth proportional to 3,870.06, 5,806.53 and 1,531.20 is: 2,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,870.06 : 5,806.53 = 1,531.20 : x
  2. Step 2: Convert to fraction form
    3,870.06/5,806.53 = 1,531.20/x
  3. Step 3: Cross multiply
    3,870.06x = 5,806.53 × 1,531.20
  4. Step 4: Simplify right side
    3,870.06x = 8,890,958.74
  5. Step 5: Solve for x
    x = 8,890,958.74/3,870.06
  6. Step 6: Final answer
    x = 2,297.37

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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.