Home / 6,288.20-9,429.90-1,904.20

Finding the Fourth Proportional to 6,288.20, 9,429.90 and 1,904.20

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Solution

The fourth proportional to 6,288.20, 9,429.90 and 1,904.20 is: 2,855.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.20 : 9,429.90 = 1,904.20 : x
  2. Step 2: Convert to fraction form
    6,288.20/9,429.90 = 1,904.20/x
  3. Step 3: Cross multiply
    6,288.20x = 9,429.90 × 1,904.20
  4. Step 4: Simplify right side
    6,288.20x = 17,956,415.58
  5. Step 5: Solve for x
    x = 17,956,415.58/6,288.20
  6. Step 6: Final answer
    x = 2,855.57

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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.