Home / 5,618.79-7,754.37-3,101.40

Finding the Fourth Proportional to 5,618.79, 7,754.37 and 3,101.40

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Solution

The fourth proportional to 5,618.79, 7,754.37 and 3,101.40 is: 4,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.79 : 7,754.37 = 3,101.40 : x
  2. Step 2: Convert to fraction form
    5,618.79/7,754.37 = 3,101.40/x
  3. Step 3: Cross multiply
    5,618.79x = 7,754.37 × 3,101.40
  4. Step 4: Simplify right side
    5,618.79x = 24,049,403.12
  5. Step 5: Solve for x
    x = 24,049,403.12/5,618.79
  6. Step 6: Final answer
    x = 4,280.17

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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.