Home / 6,288.40-8,678.64-4,297.42

Finding the Fourth Proportional to 6,288.40, 8,678.64 and 4,297.42

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Solution

The fourth proportional to 6,288.40, 8,678.64 and 4,297.42 is: 5,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.40 : 8,678.64 = 4,297.42 : x
  2. Step 2: Convert to fraction form
    6,288.40/8,678.64 = 4,297.42/x
  3. Step 3: Cross multiply
    6,288.40x = 8,678.64 × 4,297.42
  4. Step 4: Simplify right side
    6,288.40x = 37,295,761.11
  5. Step 5: Solve for x
    x = 37,295,761.11/6,288.40
  6. Step 6: Final answer
    x = 5,930.88

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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.