Home / 2,191.53-3,024.66-1,247.37

Finding the Fourth Proportional to 2,191.53, 3,024.66 and 1,247.37

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Solution

The fourth proportional to 2,191.53, 3,024.66 and 1,247.37 is: 1,721.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.53 : 3,024.66 = 1,247.37 : x
  2. Step 2: Convert to fraction form
    2,191.53/3,024.66 = 1,247.37/x
  3. Step 3: Cross multiply
    2,191.53x = 3,024.66 × 1,247.37
  4. Step 4: Simplify right side
    2,191.53x = 3,772,870.14
  5. Step 5: Solve for x
    x = 3,772,870.14/2,191.53
  6. Step 6: Final answer
    x = 1,721.57

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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.