Home / 3,155.36-4,732.90-1,207.44

Finding the Fourth Proportional to 3,155.36, 4,732.90 and 1,207.44

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Solution

The fourth proportional to 3,155.36, 4,732.90 and 1,207.44 is: 1,811.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.36 : 4,732.90 = 1,207.44 : x
  2. Step 2: Convert to fraction form
    3,155.36/4,732.90 = 1,207.44/x
  3. Step 3: Cross multiply
    3,155.36x = 4,732.90 × 1,207.44
  4. Step 4: Simplify right side
    3,155.36x = 5,714,689.76
  5. Step 5: Solve for x
    x = 5,714,689.76/3,155.36
  6. Step 6: Final answer
    x = 1,811.11

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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.