Home / 2,176.43-3,248.89-1,913.70

Finding the Fourth Proportional to 2,176.43, 3,248.89 and 1,913.70

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Solution

The fourth proportional to 2,176.43, 3,248.89 and 1,913.70 is: 2,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.43 : 3,248.89 = 1,913.70 : x
  2. Step 2: Convert to fraction form
    2,176.43/3,248.89 = 1,913.70/x
  3. Step 3: Cross multiply
    2,176.43x = 3,248.89 × 1,913.70
  4. Step 4: Simplify right side
    2,176.43x = 6,217,400.79
  5. Step 5: Solve for x
    x = 6,217,400.79/2,176.43
  6. Step 6: Final answer
    x = 2,856.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.