Home / 3,746.40-5,171.06-2,175

Finding the Fourth Proportional to 3,746.40, 5,171.06 and 2,175

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Solution

The fourth proportional to 3,746.40, 5,171.06 and 2,175 is: 3,002.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.40 : 5,171.06 = 2,175 : x
  2. Step 2: Convert to fraction form
    3,746.40/5,171.06 = 2,175/x
  3. Step 3: Cross multiply
    3,746.40x = 5,171.06 × 2,175
  4. Step 4: Simplify right side
    3,746.40x = 11,247,055.50
  5. Step 5: Solve for x
    x = 11,247,055.50/3,746.40
  6. Step 6: Final answer
    x = 3,002.10

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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.