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Finding the Fourth Proportional to 1,456.64, 2,010.02 and 859.22

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Solution

The fourth proportional to 1,456.64, 2,010.02 and 859.22 is: 1,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.64 : 2,010.02 = 859.22 : x
  2. Step 2: Convert to fraction form
    1,456.64/2,010.02 = 859.22/x
  3. Step 3: Cross multiply
    1,456.64x = 2,010.02 × 859.22
  4. Step 4: Simplify right side
    1,456.64x = 1,727,049.38
  5. Step 5: Solve for x
    x = 1,727,049.38/1,456.64
  6. Step 6: Final answer
    x = 1,185.64

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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.