Home / 1,617.17-2,231.65-954.03

Finding the Fourth Proportional to 1,617.17, 2,231.65 and 954.03

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Solution

The fourth proportional to 1,617.17, 2,231.65 and 954.03 is: 1,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.17 : 2,231.65 = 954.03 : x
  2. Step 2: Convert to fraction form
    1,617.17/2,231.65 = 954.03/x
  3. Step 3: Cross multiply
    1,617.17x = 2,231.65 × 954.03
  4. Step 4: Simplify right side
    1,617.17x = 2,129,058.06
  5. Step 5: Solve for x
    x = 2,129,058.06/1,617.17
  6. Step 6: Final answer
    x = 1,316.54

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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.