Home / 4,977.96-6,869.57-2,739.98

Finding the Fourth Proportional to 4,977.96, 6,869.57 and 2,739.98

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Solution

The fourth proportional to 4,977.96, 6,869.57 and 2,739.98 is: 3,781.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.96 : 6,869.57 = 2,739.98 : x
  2. Step 2: Convert to fraction form
    4,977.96/6,869.57 = 2,739.98/x
  3. Step 3: Cross multiply
    4,977.96x = 6,869.57 × 2,739.98
  4. Step 4: Simplify right side
    4,977.96x = 18,822,484.41
  5. Step 5: Solve for x
    x = 18,822,484.41/4,977.96
  6. Step 6: Final answer
    x = 3,781.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.