Home / 3,850.72-5,776.95-1,218.35

Finding the Fourth Proportional to 3,850.72, 5,776.95 and 1,218.35

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Solution

The fourth proportional to 3,850.72, 5,776.95 and 1,218.35 is: 1,827.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850.72 : 5,776.95 = 1,218.35 : x
  2. Step 2: Convert to fraction form
    3,850.72/5,776.95 = 1,218.35/x
  3. Step 3: Cross multiply
    3,850.72x = 5,776.95 × 1,218.35
  4. Step 4: Simplify right side
    3,850.72x = 7,038,347.03
  5. Step 5: Solve for x
    x = 7,038,347.03/3,850.72
  6. Step 6: Final answer
    x = 1,827.80

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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.