Home / 3,431.79-4,729.14-2,803.95

Finding the Fourth Proportional to 3,431.79, 4,729.14 and 2,803.95

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Solution

The fourth proportional to 3,431.79, 4,729.14 and 2,803.95 is: 3,863.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.79 : 4,729.14 = 2,803.95 : x
  2. Step 2: Convert to fraction form
    3,431.79/4,729.14 = 2,803.95/x
  3. Step 3: Cross multiply
    3,431.79x = 4,729.14 × 2,803.95
  4. Step 4: Simplify right side
    3,431.79x = 13,260,272.10
  5. Step 5: Solve for x
    x = 13,260,272.10/3,431.79
  6. Step 6: Final answer
    x = 3,863.95

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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.