Home / 1,137.24-1,697.20-1,108.08

Finding the Fourth Proportional to 1,137.24, 1,697.20 and 1,108.08

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Solution

The fourth proportional to 1,137.24, 1,697.20 and 1,108.08 is: 1,653.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137.24 : 1,697.20 = 1,108.08 : x
  2. Step 2: Convert to fraction form
    1,137.24/1,697.20 = 1,108.08/x
  3. Step 3: Cross multiply
    1,137.24x = 1,697.20 × 1,108.08
  4. Step 4: Simplify right side
    1,137.24x = 1,880,633.38
  5. Step 5: Solve for x
    x = 1,880,633.38/1,137.24
  6. Step 6: Final answer
    x = 1,653.68

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.