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Finding the Fourth Proportional to 3,167.01, 4,750.25 and 858.51

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Solution

The fourth proportional to 3,167.01, 4,750.25 and 858.51 is: 1,287.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.01 : 4,750.25 = 858.51 : x
  2. Step 2: Convert to fraction form
    3,167.01/4,750.25 = 858.51/x
  3. Step 3: Cross multiply
    3,167.01x = 4,750.25 × 858.51
  4. Step 4: Simplify right side
    3,167.01x = 4,078,132.83
  5. Step 5: Solve for x
    x = 4,078,132.83/3,167.01
  6. Step 6: Final answer
    x = 1,287.69

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1.5x scale

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.