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Finding the Fourth Proportional to 2,584.16, 3,875.85 and 852.20

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Solution

The fourth proportional to 2,584.16, 3,875.85 and 852.20 is: 1,278.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,584.16 : 3,875.85 = 852.20 : x
  2. Step 2: Convert to fraction form
    2,584.16/3,875.85 = 852.20/x
  3. Step 3: Cross multiply
    2,584.16x = 3,875.85 × 852.20
  4. Step 4: Simplify right side
    2,584.16x = 3,302,979.99
  5. Step 5: Solve for x
    x = 3,302,979.99/2,584.16
  6. Step 6: Final answer
    x = 1,278.17

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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.