Home / 3,494.40-4,822.56-1,922.70

Finding the Fourth Proportional to 3,494.40, 4,822.56 and 1,922.70

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Solution

The fourth proportional to 3,494.40, 4,822.56 and 1,922.70 is: 2,653.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,494.40 : 4,822.56 = 1,922.70 : x
  2. Step 2: Convert to fraction form
    3,494.40/4,822.56 = 1,922.70/x
  3. Step 3: Cross multiply
    3,494.40x = 4,822.56 × 1,922.70
  4. Step 4: Simplify right side
    3,494.40x = 9,272,336.11
  5. Step 5: Solve for x
    x = 9,272,336.11/3,494.40
  6. Step 6: Final answer
    x = 2,653.48

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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.