Home / 8,389.91-12,586.47-2,841.77

Finding the Fourth Proportional to 8,389.91, 12,586.47 and 2,841.77

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Solution

The fourth proportional to 8,389.91, 12,586.47 and 2,841.77 is: 4,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.91 : 12,586.47 = 2,841.77 : x
  2. Step 2: Convert to fraction form
    8,389.91/12,586.47 = 2,841.77/x
  3. Step 3: Cross multiply
    8,389.91x = 12,586.47 × 2,841.77
  4. Step 4: Simplify right side
    8,389.91x = 35,767,852.85
  5. Step 5: Solve for x
    x = 35,767,852.85/8,389.91
  6. Step 6: Final answer
    x = 4,263.20

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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.