Home / 3,178.34-4,767.51-1,445.75

Finding the Fourth Proportional to 3,178.34, 4,767.51 and 1,445.75

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Solution

The fourth proportional to 3,178.34, 4,767.51 and 1,445.75 is: 2,168.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178.34 : 4,767.51 = 1,445.75 : x
  2. Step 2: Convert to fraction form
    3,178.34/4,767.51 = 1,445.75/x
  3. Step 3: Cross multiply
    3,178.34x = 4,767.51 × 1,445.75
  4. Step 4: Simplify right side
    3,178.34x = 6,892,627.58
  5. Step 5: Solve for x
    x = 6,892,627.58/3,178.34
  6. Step 6: Final answer
    x = 2,168.63

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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.