Home / 5,166.71-7,130.13-2,808.84

Finding the Fourth Proportional to 5,166.71, 7,130.13 and 2,808.84

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Solution

The fourth proportional to 5,166.71, 7,130.13 and 2,808.84 is: 3,876.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.71 : 7,130.13 = 2,808.84 : x
  2. Step 2: Convert to fraction form
    5,166.71/7,130.13 = 2,808.84/x
  3. Step 3: Cross multiply
    5,166.71x = 7,130.13 × 2,808.84
  4. Step 4: Simplify right side
    5,166.71x = 20,027,394.35
  5. Step 5: Solve for x
    x = 20,027,394.35/5,166.71
  6. Step 6: Final answer
    x = 3,876.24

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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.