Home / 4,187.79-6,280.83-1,265.49

Finding the Fourth Proportional to 4,187.79, 6,280.83 and 1,265.49

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Solution

The fourth proportional to 4,187.79, 6,280.83 and 1,265.49 is: 1,897.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.79 : 6,280.83 = 1,265.49 : x
  2. Step 2: Convert to fraction form
    4,187.79/6,280.83 = 1,265.49/x
  3. Step 3: Cross multiply
    4,187.79x = 6,280.83 × 1,265.49
  4. Step 4: Simplify right side
    4,187.79x = 7,948,327.56
  5. Step 5: Solve for x
    x = 7,948,327.56/4,187.79
  6. Step 6: Final answer
    x = 1,897.98

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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.