Home / 4,590.72-6,891.20-4,289.58

Finding the Fourth Proportional to 4,590.72, 6,891.20 and 4,289.58

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Solution

The fourth proportional to 4,590.72, 6,891.20 and 4,289.58 is: 6,439.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,590.72 : 6,891.20 = 4,289.58 : x
  2. Step 2: Convert to fraction form
    4,590.72/6,891.20 = 4,289.58/x
  3. Step 3: Cross multiply
    4,590.72x = 6,891.20 × 4,289.58
  4. Step 4: Simplify right side
    4,590.72x = 29,560,332.25
  5. Step 5: Solve for x
    x = 29,560,332.25/4,590.72
  6. Step 6: Final answer
    x = 6,439.15

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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.