Home / 3,060.32-4,590.58-869.22

Finding the Fourth Proportional to 3,060.32, 4,590.58 and 869.22

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Solution

The fourth proportional to 3,060.32, 4,590.58 and 869.22 is: 1,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,060.32 : 4,590.58 = 869.22 : x
  2. Step 2: Convert to fraction form
    3,060.32/4,590.58 = 869.22/x
  3. Step 3: Cross multiply
    3,060.32x = 4,590.58 × 869.22
  4. Step 4: Simplify right side
    3,060.32x = 3,990,223.95
  5. Step 5: Solve for x
    x = 3,990,223.95/3,060.32
  6. Step 6: Final answer
    x = 1,303.86

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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.