Home / 3,086.07-4,258.77-1,688.82

Finding the Fourth Proportional to 3,086.07, 4,258.77 and 1,688.82

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Solution

The fourth proportional to 3,086.07, 4,258.77 and 1,688.82 is: 2,330.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.07 : 4,258.77 = 1,688.82 : x
  2. Step 2: Convert to fraction form
    3,086.07/4,258.77 = 1,688.82/x
  3. Step 3: Cross multiply
    3,086.07x = 4,258.77 × 1,688.82
  4. Step 4: Simplify right side
    3,086.07x = 7,192,295.95
  5. Step 5: Solve for x
    x = 7,192,295.95/3,086.07
  6. Step 6: Final answer
    x = 2,330.57

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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.