Home / 5,108.91-7,661.54-1,776.30

Finding the Fourth Proportional to 5,108.91, 7,661.54 and 1,776.30

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Solution

The fourth proportional to 5,108.91, 7,661.54 and 1,776.30 is: 2,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.91 : 7,661.54 = 1,776.30 : x
  2. Step 2: Convert to fraction form
    5,108.91/7,661.54 = 1,776.30/x
  3. Step 3: Cross multiply
    5,108.91x = 7,661.54 × 1,776.30
  4. Step 4: Simplify right side
    5,108.91x = 13,609,193.50
  5. Step 5: Solve for x
    x = 13,609,193.50/5,108.91
  6. Step 6: Final answer
    x = 2,663.82

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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.