Home / 2,420.74-3,631.63-1,266.18

Finding the Fourth Proportional to 2,420.74, 3,631.63 and 1,266.18

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Solution

The fourth proportional to 2,420.74, 3,631.63 and 1,266.18 is: 1,899.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,420.74 : 3,631.63 = 1,266.18 : x
  2. Step 2: Convert to fraction form
    2,420.74/3,631.63 = 1,266.18/x
  3. Step 3: Cross multiply
    2,420.74x = 3,631.63 × 1,266.18
  4. Step 4: Simplify right side
    2,420.74x = 4,598,297.27
  5. Step 5: Solve for x
    x = 4,598,297.27/2,420.74
  6. Step 6: Final answer
    x = 1,899.54

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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.