Home / 2,165.16-3,242.76-1,297.56

Finding the Fourth Proportional to 2,165.16, 3,242.76 and 1,297.56

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Solution

The fourth proportional to 2,165.16, 3,242.76 and 1,297.56 is: 1,943.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165.16 : 3,242.76 = 1,297.56 : x
  2. Step 2: Convert to fraction form
    2,165.16/3,242.76 = 1,297.56/x
  3. Step 3: Cross multiply
    2,165.16x = 3,242.76 × 1,297.56
  4. Step 4: Simplify right side
    2,165.16x = 4,207,675.67
  5. Step 5: Solve for x
    x = 4,207,675.67/2,165.16
  6. Step 6: Final answer
    x = 1,943.36

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1.5x scale

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.