Home / 3,856.92-5,320.08-2,530.72

Finding the Fourth Proportional to 3,856.92, 5,320.08 and 2,530.72

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Solution

The fourth proportional to 3,856.92, 5,320.08 and 2,530.72 is: 3,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.92 : 5,320.08 = 2,530.72 : x
  2. Step 2: Convert to fraction form
    3,856.92/5,320.08 = 2,530.72/x
  3. Step 3: Cross multiply
    3,856.92x = 5,320.08 × 2,530.72
  4. Step 4: Simplify right side
    3,856.92x = 13,463,632.86
  5. Step 5: Solve for x
    x = 13,463,632.86/3,856.92
  6. Step 6: Final answer
    x = 3,490.77

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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.