Home / 3,104.61-4,284.39-1,688.31

Finding the Fourth Proportional to 3,104.61, 4,284.39 and 1,688.31

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Solution

The fourth proportional to 3,104.61, 4,284.39 and 1,688.31 is: 2,329.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.61 : 4,284.39 = 1,688.31 : x
  2. Step 2: Convert to fraction form
    3,104.61/4,284.39 = 1,688.31/x
  3. Step 3: Cross multiply
    3,104.61x = 4,284.39 × 1,688.31
  4. Step 4: Simplify right side
    3,104.61x = 7,233,378.48
  5. Step 5: Solve for x
    x = 7,233,378.48/3,104.61
  6. Step 6: Final answer
    x = 2,329.88

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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.