Home / 3,167.15-4,751.40-976.10

Finding the Fourth Proportional to 3,167.15, 4,751.40 and 976.10

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Solution

The fourth proportional to 3,167.15, 4,751.40 and 976.10 is: 1,464.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,167.15 : 4,751.40 = 976.10 : x
  2. Step 2: Convert to fraction form
    3,167.15/4,751.40 = 976.10/x
  3. Step 3: Cross multiply
    3,167.15x = 4,751.40 × 976.10
  4. Step 4: Simplify right side
    3,167.15x = 4,637,841.54
  5. Step 5: Solve for x
    x = 4,637,841.54/3,167.15
  6. Step 6: Final answer
    x = 1,464.36

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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.