Home / 1,948.42-2,688.79-1,064.22

Finding the Fourth Proportional to 1,948.42, 2,688.79 and 1,064.22

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Solution

The fourth proportional to 1,948.42, 2,688.79 and 1,064.22 is: 1,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.42 : 2,688.79 = 1,064.22 : x
  2. Step 2: Convert to fraction form
    1,948.42/2,688.79 = 1,064.22/x
  3. Step 3: Cross multiply
    1,948.42x = 2,688.79 × 1,064.22
  4. Step 4: Simplify right side
    1,948.42x = 2,861,464.09
  5. Step 5: Solve for x
    x = 2,861,464.09/1,948.42
  6. Step 6: Final answer
    x = 1,468.61

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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.