Home / 4,298.62-6,445.77-1,991.74

Finding the Fourth Proportional to 4,298.62, 6,445.77 and 1,991.74

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Solution

The fourth proportional to 4,298.62, 6,445.77 and 1,991.74 is: 2,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,298.62 : 6,445.77 = 1,991.74 : x
  2. Step 2: Convert to fraction form
    4,298.62/6,445.77 = 1,991.74/x
  3. Step 3: Cross multiply
    4,298.62x = 6,445.77 × 1,991.74
  4. Step 4: Simplify right side
    4,298.62x = 12,838,297.94
  5. Step 5: Solve for x
    x = 12,838,297.94/4,298.62
  6. Step 6: Final answer
    x = 2,986.61

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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.