Home / 3,104.79-4,284.65-1,688.48

Finding the Fourth Proportional to 3,104.79, 4,284.65 and 1,688.48

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Solution

The fourth proportional to 3,104.79, 4,284.65 and 1,688.48 is: 2,330.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,104.79 : 4,284.65 = 1,688.48 : x
  2. Step 2: Convert to fraction form
    3,104.79/4,284.65 = 1,688.48/x
  3. Step 3: Cross multiply
    3,104.79x = 4,284.65 × 1,688.48
  4. Step 4: Simplify right side
    3,104.79x = 7,234,545.83
  5. Step 5: Solve for x
    x = 7,234,545.83/3,104.79
  6. Step 6: Final answer
    x = 2,330.12

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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.