Home / 4,186.81-6,280.21-1,265.11

Finding the Fourth Proportional to 4,186.81, 6,280.21 and 1,265.11

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Solution

The fourth proportional to 4,186.81, 6,280.21 and 1,265.11 is: 1,897.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.81 : 6,280.21 = 1,265.11 : x
  2. Step 2: Convert to fraction form
    4,186.81/6,280.21 = 1,265.11/x
  3. Step 3: Cross multiply
    4,186.81x = 6,280.21 × 1,265.11
  4. Step 4: Simplify right side
    4,186.81x = 7,945,137.61
  5. Step 5: Solve for x
    x = 7,945,137.61/4,186.81
  6. Step 6: Final answer
    x = 1,897.66

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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.