Home / 5,132.79-7,083.15-2,894.63

Finding the Fourth Proportional to 5,132.79, 7,083.15 and 2,894.63

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Solution

The fourth proportional to 5,132.79, 7,083.15 and 2,894.63 is: 3,994.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.79 : 7,083.15 = 2,894.63 : x
  2. Step 2: Convert to fraction form
    5,132.79/7,083.15 = 2,894.63/x
  3. Step 3: Cross multiply
    5,132.79x = 7,083.15 × 2,894.63
  4. Step 4: Simplify right side
    5,132.79x = 20,503,063.07
  5. Step 5: Solve for x
    x = 20,503,063.07/5,132.79
  6. Step 6: Final answer
    x = 3,994.53

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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.