Home / 1,994.32-2,750.28-1,247.23

Finding the Fourth Proportional to 1,994.32, 2,750.28 and 1,247.23

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Solution

The fourth proportional to 1,994.32, 2,750.28 and 1,247.23 is: 1,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,994.32 : 2,750.28 = 1,247.23 : x
  2. Step 2: Convert to fraction form
    1,994.32/2,750.28 = 1,247.23/x
  3. Step 3: Cross multiply
    1,994.32x = 2,750.28 × 1,247.23
  4. Step 4: Simplify right side
    1,994.32x = 3,430,231.72
  5. Step 5: Solve for x
    x = 3,430,231.72/1,994.32
  6. Step 6: Final answer
    x = 1,720.00

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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.