Home / 5,166.84-7,130.28-2,809.07

Finding the Fourth Proportional to 5,166.84, 7,130.28 and 2,809.07

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Solution

The fourth proportional to 5,166.84, 7,130.28 and 2,809.07 is: 3,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.84 : 7,130.28 = 2,809.07 : x
  2. Step 2: Convert to fraction form
    5,166.84/7,130.28 = 2,809.07/x
  3. Step 3: Cross multiply
    5,166.84x = 7,130.28 × 2,809.07
  4. Step 4: Simplify right side
    5,166.84x = 20,029,446.73
  5. Step 5: Solve for x
    x = 20,029,446.73/5,166.84
  6. Step 6: Final answer
    x = 3,876.53

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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.