Home / 3,689.17-5,086.07-3,574.51

Finding the Fourth Proportional to 3,689.17, 5,086.07 and 3,574.51

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Solution

The fourth proportional to 3,689.17, 5,086.07 and 3,574.51 is: 4,927.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,689.17 : 5,086.07 = 3,574.51 : x
  2. Step 2: Convert to fraction form
    3,689.17/5,086.07 = 3,574.51/x
  3. Step 3: Cross multiply
    3,689.17x = 5,086.07 × 3,574.51
  4. Step 4: Simplify right side
    3,689.17x = 18,180,208.08
  5. Step 5: Solve for x
    x = 18,180,208.08/3,689.17
  6. Step 6: Final answer
    x = 4,927.99

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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.