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Finding the Fourth Proportional to 3,777.80, 5,657.24 and 2,386.94

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Solution

The fourth proportional to 3,777.80, 5,657.24 and 2,386.94 is: 3,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.80 : 5,657.24 = 2,386.94 : x
  2. Step 2: Convert to fraction form
    3,777.80/5,657.24 = 2,386.94/x
  3. Step 3: Cross multiply
    3,777.80x = 5,657.24 × 2,386.94
  4. Step 4: Simplify right side
    3,777.80x = 13,503,492.45
  5. Step 5: Solve for x
    x = 13,503,492.45/3,777.80
  6. Step 6: Final answer
    x = 3,574.43

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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.