Home / 2,261.88-3,390.03-1,285.02

Finding the Fourth Proportional to 2,261.88, 3,390.03 and 1,285.02

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Solution

The fourth proportional to 2,261.88, 3,390.03 and 1,285.02 is: 1,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261.88 : 3,390.03 = 1,285.02 : x
  2. Step 2: Convert to fraction form
    2,261.88/3,390.03 = 1,285.02/x
  3. Step 3: Cross multiply
    2,261.88x = 3,390.03 × 1,285.02
  4. Step 4: Simplify right side
    2,261.88x = 4,356,256.35
  5. Step 5: Solve for x
    x = 4,356,256.35/2,261.88
  6. Step 6: Final answer
    x = 1,925.94

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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.