Home / 1,493.64-2,228.51-1,311.39

Finding the Fourth Proportional to 1,493.64, 2,228.51 and 1,311.39

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Solution

The fourth proportional to 1,493.64, 2,228.51 and 1,311.39 is: 1,956.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,493.64 : 2,228.51 = 1,311.39 : x
  2. Step 2: Convert to fraction form
    1,493.64/2,228.51 = 1,311.39/x
  3. Step 3: Cross multiply
    1,493.64x = 2,228.51 × 1,311.39
  4. Step 4: Simplify right side
    1,493.64x = 2,922,449.01
  5. Step 5: Solve for x
    x = 2,922,449.01/1,493.64
  6. Step 6: Final answer
    x = 1,956.60

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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.