Home / 5,261.95-7,893.67-1,929.78

Finding the Fourth Proportional to 5,261.95, 7,893.67 and 1,929.78

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Solution

The fourth proportional to 5,261.95, 7,893.67 and 1,929.78 is: 2,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.95 : 7,893.67 = 1,929.78 : x
  2. Step 2: Convert to fraction form
    5,261.95/7,893.67 = 1,929.78/x
  3. Step 3: Cross multiply
    5,261.95x = 7,893.67 × 1,929.78
  4. Step 4: Simplify right side
    5,261.95x = 15,233,046.49
  5. Step 5: Solve for x
    x = 15,233,046.49/5,261.95
  6. Step 6: Final answer
    x = 2,894.94

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1.5x scale

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.