Home / 4,288.14-6,420.65-2,803.68

Finding the Fourth Proportional to 4,288.14, 6,420.65 and 2,803.68

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Solution

The fourth proportional to 4,288.14, 6,420.65 and 2,803.68 is: 4,197.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.14 : 6,420.65 = 2,803.68 : x
  2. Step 2: Convert to fraction form
    4,288.14/6,420.65 = 2,803.68/x
  3. Step 3: Cross multiply
    4,288.14x = 6,420.65 × 2,803.68
  4. Step 4: Simplify right side
    4,288.14x = 18,001,433.97
  5. Step 5: Solve for x
    x = 18,001,433.97/4,288.14
  6. Step 6: Final answer
    x = 4,197.96

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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.