Home / 2,642.34-3,969.27-1,617.06

Finding the Fourth Proportional to 2,642.34, 3,969.27 and 1,617.06

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Solution

The fourth proportional to 2,642.34, 3,969.27 and 1,617.06 is: 2,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.34 : 3,969.27 = 1,617.06 : x
  2. Step 2: Convert to fraction form
    2,642.34/3,969.27 = 1,617.06/x
  3. Step 3: Cross multiply
    2,642.34x = 3,969.27 × 1,617.06
  4. Step 4: Simplify right side
    2,642.34x = 6,418,547.75
  5. Step 5: Solve for x
    x = 6,418,547.75/2,642.34
  6. Step 6: Final answer
    x = 2,429.12

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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.