Home / 5,777.81-8,665.76-2,079.35

Finding the Fourth Proportional to 5,777.81, 8,665.76 and 2,079.35

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Solution

The fourth proportional to 5,777.81, 8,665.76 and 2,079.35 is: 3,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,777.81 : 8,665.76 = 2,079.35 : x
  2. Step 2: Convert to fraction form
    5,777.81/8,665.76 = 2,079.35/x
  3. Step 3: Cross multiply
    5,777.81x = 8,665.76 × 2,079.35
  4. Step 4: Simplify right side
    5,777.81x = 18,019,148.06
  5. Step 5: Solve for x
    x = 18,019,148.06/5,777.81
  6. Step 6: Final answer
    x = 3,118.68

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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.