Home / 7,867.19-11,798.45-2,320.40

Finding the Fourth Proportional to 7,867.19, 11,798.45 and 2,320.40

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Solution

The fourth proportional to 7,867.19, 11,798.45 and 2,320.40 is: 3,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,867.19 : 11,798.45 = 2,320.40 : x
  2. Step 2: Convert to fraction form
    7,867.19/11,798.45 = 2,320.40/x
  3. Step 3: Cross multiply
    7,867.19x = 11,798.45 × 2,320.40
  4. Step 4: Simplify right side
    7,867.19x = 27,377,052.79
  5. Step 5: Solve for x
    x = 27,377,052.79/7,867.19
  6. Step 6: Final answer
    x = 3,479.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.