Home / 2,101.20-3,152.28-1,176.30

Finding the Fourth Proportional to 2,101.20, 3,152.28 and 1,176.30

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Solution

The fourth proportional to 2,101.20, 3,152.28 and 1,176.30 is: 1,764.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.20 : 3,152.28 = 1,176.30 : x
  2. Step 2: Convert to fraction form
    2,101.20/3,152.28 = 1,176.30/x
  3. Step 3: Cross multiply
    2,101.20x = 3,152.28 × 1,176.30
  4. Step 4: Simplify right side
    2,101.20x = 3,708,026.96
  5. Step 5: Solve for x
    x = 3,708,026.96/2,101.20
  6. Step 6: Final answer
    x = 1,764.72

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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.