Home / 3,104.48-4,284.20-1,688.18

Finding the Fourth Proportional to 3,104.48, 4,284.20 and 1,688.18

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Solution

The fourth proportional to 3,104.48, 4,284.20 and 1,688.18 is: 2,329.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.48 : 4,284.20 = 1,688.18 : x
  2. Step 2: Convert to fraction form
    3,104.48/4,284.20 = 1,688.18/x
  3. Step 3: Cross multiply
    3,104.48x = 4,284.20 × 1,688.18
  4. Step 4: Simplify right side
    3,104.48x = 7,232,470.89
  5. Step 5: Solve for x
    x = 7,232,470.89/3,104.48
  6. Step 6: Final answer
    x = 2,329.69

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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.