Home / 1,948.33-2,688.75-1,064.15

Finding the Fourth Proportional to 1,948.33, 2,688.75 and 1,064.15

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Solution

The fourth proportional to 1,948.33, 2,688.75 and 1,064.15 is: 1,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.33 : 2,688.75 = 1,064.15 : x
  2. Step 2: Convert to fraction form
    1,948.33/2,688.75 = 1,064.15/x
  3. Step 3: Cross multiply
    1,948.33x = 2,688.75 × 1,064.15
  4. Step 4: Simplify right side
    1,948.33x = 2,861,219.87
  5. Step 5: Solve for x
    x = 2,861,219.87/1,948.33
  6. Step 6: Final answer
    x = 1,468.55

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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.