Home / 3,677.48-5,518.28-2,857.40

Finding the Fourth Proportional to 3,677.48, 5,518.28 and 2,857.40

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Solution

The fourth proportional to 3,677.48, 5,518.28 and 2,857.40 is: 4,287.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,677.48 : 5,518.28 = 2,857.40 : x
  2. Step 2: Convert to fraction form
    3,677.48/5,518.28 = 2,857.40/x
  3. Step 3: Cross multiply
    3,677.48x = 5,518.28 × 2,857.40
  4. Step 4: Simplify right side
    3,677.48x = 15,767,933.27
  5. Step 5: Solve for x
    x = 15,767,933.27/3,677.48
  6. Step 6: Final answer
    x = 4,287.70

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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.