Home / 3,405.84-5,111.19-1,675.68

Finding the Fourth Proportional to 3,405.84, 5,111.19 and 1,675.68

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Solution

The fourth proportional to 3,405.84, 5,111.19 and 1,675.68 is: 2,514.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.84 : 5,111.19 = 1,675.68 : x
  2. Step 2: Convert to fraction form
    3,405.84/5,111.19 = 1,675.68/x
  3. Step 3: Cross multiply
    3,405.84x = 5,111.19 × 1,675.68
  4. Step 4: Simplify right side
    3,405.84x = 8,564,718.86
  5. Step 5: Solve for x
    x = 8,564,718.86/3,405.84
  6. Step 6: Final answer
    x = 2,514.72

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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.