Home / 5,476.74-8,215.85-1,777.77

Finding the Fourth Proportional to 5,476.74, 8,215.85 and 1,777.77

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Solution

The fourth proportional to 5,476.74, 8,215.85 and 1,777.77 is: 2,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,476.74 : 8,215.85 = 1,777.77 : x
  2. Step 2: Convert to fraction form
    5,476.74/8,215.85 = 1,777.77/x
  3. Step 3: Cross multiply
    5,476.74x = 8,215.85 × 1,777.77
  4. Step 4: Simplify right side
    5,476.74x = 14,605,891.65
  5. Step 5: Solve for x
    x = 14,605,891.65/5,476.74
  6. Step 6: Final answer
    x = 2,666.90

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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.