Home / 5,166.69-7,130.15-2,808.99

Finding the Fourth Proportional to 5,166.69, 7,130.15 and 2,808.99

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Solution

The fourth proportional to 5,166.69, 7,130.15 and 2,808.99 is: 3,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.69 : 7,130.15 = 2,808.99 : x
  2. Step 2: Convert to fraction form
    5,166.69/7,130.15 = 2,808.99/x
  3. Step 3: Cross multiply
    5,166.69x = 7,130.15 × 2,808.99
  4. Step 4: Simplify right side
    5,166.69x = 20,028,506.00
  5. Step 5: Solve for x
    x = 20,028,506.00/5,166.69
  6. Step 6: Final answer
    x = 3,876.47

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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.