Home / 3,175.69-4,386.05-2,165.67

Finding the Fourth Proportional to 3,175.69, 4,386.05 and 2,165.67

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Solution

The fourth proportional to 3,175.69, 4,386.05 and 2,165.67 is: 2,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,175.69 : 4,386.05 = 2,165.67 : x
  2. Step 2: Convert to fraction form
    3,175.69/4,386.05 = 2,165.67/x
  3. Step 3: Cross multiply
    3,175.69x = 4,386.05 × 2,165.67
  4. Step 4: Simplify right side
    3,175.69x = 9,498,734.20
  5. Step 5: Solve for x
    x = 9,498,734.20/3,175.69
  6. Step 6: Final answer
    x = 2,991.08

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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.