Home / 1,428.55-2,137.33-1,064.95

Finding the Fourth Proportional to 1,428.55, 2,137.33 and 1,064.95

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Solution

The fourth proportional to 1,428.55, 2,137.33 and 1,064.95 is: 1,593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428.55 : 2,137.33 = 1,064.95 : x
  2. Step 2: Convert to fraction form
    1,428.55/2,137.33 = 1,064.95/x
  3. Step 3: Cross multiply
    1,428.55x = 2,137.33 × 1,064.95
  4. Step 4: Simplify right side
    1,428.55x = 2,276,149.58
  5. Step 5: Solve for x
    x = 2,276,149.58/1,428.55
  6. Step 6: Final answer
    x = 1,593.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.