Home / 5,259.92-7,258.58-2,869.78

Finding the Fourth Proportional to 5,259.92, 7,258.58 and 2,869.78

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Solution

The fourth proportional to 5,259.92, 7,258.58 and 2,869.78 is: 3,960.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.92 : 7,258.58 = 2,869.78 : x
  2. Step 2: Convert to fraction form
    5,259.92/7,258.58 = 2,869.78/x
  3. Step 3: Cross multiply
    5,259.92x = 7,258.58 × 2,869.78
  4. Step 4: Simplify right side
    5,259.92x = 20,830,527.71
  5. Step 5: Solve for x
    x = 20,830,527.71/5,259.92
  6. Step 6: Final answer
    x = 3,960.24

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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.