Home / 4,392.18-6,590.87-1,620.80

Finding the Fourth Proportional to 4,392.18, 6,590.87 and 1,620.80

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Solution

The fourth proportional to 4,392.18, 6,590.87 and 1,620.80 is: 2,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.18 : 6,590.87 = 1,620.80 : x
  2. Step 2: Convert to fraction form
    4,392.18/6,590.87 = 1,620.80/x
  3. Step 3: Cross multiply
    4,392.18x = 6,590.87 × 1,620.80
  4. Step 4: Simplify right side
    4,392.18x = 10,682,441.04
  5. Step 5: Solve for x
    x = 10,682,441.04/4,392.18
  6. Step 6: Final answer
    x = 2,432.15

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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.