Home / 1,259.18-1,880.28-1,028.52

Finding the Fourth Proportional to 1,259.18, 1,880.28 and 1,028.52

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Solution

The fourth proportional to 1,259.18, 1,880.28 and 1,028.52 is: 1,535.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259.18 : 1,880.28 = 1,028.52 : x
  2. Step 2: Convert to fraction form
    1,259.18/1,880.28 = 1,028.52/x
  3. Step 3: Cross multiply
    1,259.18x = 1,880.28 × 1,028.52
  4. Step 4: Simplify right side
    1,259.18x = 1,933,900.44
  5. Step 5: Solve for x
    x = 1,933,900.44/1,259.18
  6. Step 6: Final answer
    x = 1,535.85

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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.