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Finding the Fourth Proportional to 2,803.86, 3,866.67 and 2,504.70

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Solution

The fourth proportional to 2,803.86, 3,866.67 and 2,504.70 is: 3,454.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.86 : 3,866.67 = 2,504.70 : x
  2. Step 2: Convert to fraction form
    2,803.86/3,866.67 = 2,504.70/x
  3. Step 3: Cross multiply
    2,803.86x = 3,866.67 × 2,504.70
  4. Step 4: Simplify right side
    2,803.86x = 9,684,848.35
  5. Step 5: Solve for x
    x = 9,684,848.35/2,803.86
  6. Step 6: Final answer
    x = 3,454.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.