Home / 4,392.30-6,590.40-2,311.80

Finding the Fourth Proportional to 4,392.30, 6,590.40 and 2,311.80

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Solution

The fourth proportional to 4,392.30, 6,590.40 and 2,311.80 is: 3,468.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.30 : 6,590.40 = 2,311.80 : x
  2. Step 2: Convert to fraction form
    4,392.30/6,590.40 = 2,311.80/x
  3. Step 3: Cross multiply
    4,392.30x = 6,590.40 × 2,311.80
  4. Step 4: Simplify right side
    4,392.30x = 15,235,686.72
  5. Step 5: Solve for x
    x = 15,235,686.72/4,392.30
  6. Step 6: Final answer
    x = 3,468.73

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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.