Home / 1,937.02-2,672.68-1,191.10

Finding the Fourth Proportional to 1,937.02, 2,672.68 and 1,191.10

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Solution

The fourth proportional to 1,937.02, 2,672.68 and 1,191.10 is: 1,643.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,937.02 : 2,672.68 = 1,191.10 : x
  2. Step 2: Convert to fraction form
    1,937.02/2,672.68 = 1,191.10/x
  3. Step 3: Cross multiply
    1,937.02x = 2,672.68 × 1,191.10
  4. Step 4: Simplify right side
    1,937.02x = 3,183,429.15
  5. Step 5: Solve for x
    x = 3,183,429.15/1,937.02
  6. Step 6: Final answer
    x = 1,643.47

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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.