Home / 3,409.40-5,111.10-1,653.52

Finding the Fourth Proportional to 3,409.40, 5,111.10 and 1,653.52

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Solution

The fourth proportional to 3,409.40, 5,111.10 and 1,653.52 is: 2,478.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,409.40 : 5,111.10 = 1,653.52 : x
  2. Step 2: Convert to fraction form
    3,409.40/5,111.10 = 1,653.52/x
  3. Step 3: Cross multiply
    3,409.40x = 5,111.10 × 1,653.52
  4. Step 4: Simplify right side
    3,409.40x = 8,451,306.07
  5. Step 5: Solve for x
    x = 8,451,306.07/3,409.40
  6. Step 6: Final answer
    x = 2,478.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.