Home / 1,607.06-2,217.75-908.57

Finding the Fourth Proportional to 1,607.06, 2,217.75 and 908.57

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Solution

The fourth proportional to 1,607.06, 2,217.75 and 908.57 is: 1,253.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.06 : 2,217.75 = 908.57 : x
  2. Step 2: Convert to fraction form
    1,607.06/2,217.75 = 908.57/x
  3. Step 3: Cross multiply
    1,607.06x = 2,217.75 × 908.57
  4. Step 4: Simplify right side
    1,607.06x = 2,014,983.25
  5. Step 5: Solve for x
    x = 2,014,983.25/1,607.06
  6. Step 6: Final answer
    x = 1,253.83

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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.