Home / 3,856.08-5,320.44-2,439.66

Finding the Fourth Proportional to 3,856.08, 5,320.44 and 2,439.66

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Solution

The fourth proportional to 3,856.08, 5,320.44 and 2,439.66 is: 3,366.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,856.08 : 5,320.44 = 2,439.66 : x
  2. Step 2: Convert to fraction form
    3,856.08/5,320.44 = 2,439.66/x
  3. Step 3: Cross multiply
    3,856.08x = 5,320.44 × 2,439.66
  4. Step 4: Simplify right side
    3,856.08x = 12,980,064.65
  5. Step 5: Solve for x
    x = 12,980,064.65/3,856.08
  6. Step 6: Final answer
    x = 3,366.13

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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.