Home / 2,176.32-3,005.78-1,471.08

Finding the Fourth Proportional to 2,176.32, 3,005.78 and 1,471.08

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Solution

The fourth proportional to 2,176.32, 3,005.78 and 1,471.08 is: 2,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.32 : 3,005.78 = 1,471.08 : x
  2. Step 2: Convert to fraction form
    2,176.32/3,005.78 = 1,471.08/x
  3. Step 3: Cross multiply
    2,176.32x = 3,005.78 × 1,471.08
  4. Step 4: Simplify right side
    2,176.32x = 4,421,729.85
  5. Step 5: Solve for x
    x = 4,421,729.85/2,176.32
  6. Step 6: Final answer
    x = 2,031.74

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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.