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Finding the Fourth Proportional to 1,618.23, 2,232.81 and 954.93

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Solution

The fourth proportional to 1,618.23, 2,232.81 and 954.93 is: 1,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.23 : 2,232.81 = 954.93 : x
  2. Step 2: Convert to fraction form
    1,618.23/2,232.81 = 954.93/x
  3. Step 3: Cross multiply
    1,618.23x = 2,232.81 × 954.93
  4. Step 4: Simplify right side
    1,618.23x = 2,132,177.25
  5. Step 5: Solve for x
    x = 2,132,177.25/1,618.23
  6. Step 6: Final answer
    x = 1,317.60

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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.