Home / 2,617.67-3,612.35-1,438.66

Finding the Fourth Proportional to 2,617.67, 3,612.35 and 1,438.66

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Solution

The fourth proportional to 2,617.67, 3,612.35 and 1,438.66 is: 1,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617.67 : 3,612.35 = 1,438.66 : x
  2. Step 2: Convert to fraction form
    2,617.67/3,612.35 = 1,438.66/x
  3. Step 3: Cross multiply
    2,617.67x = 3,612.35 × 1,438.66
  4. Step 4: Simplify right side
    2,617.67x = 5,196,943.47
  5. Step 5: Solve for x
    x = 5,196,943.47/2,617.67
  6. Step 6: Final answer
    x = 1,985.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.