Home / 5,166.02-7,129.13-2,808.18

Finding the Fourth Proportional to 5,166.02, 7,129.13 and 2,808.18

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Solution

The fourth proportional to 5,166.02, 7,129.13 and 2,808.18 is: 3,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,166.02 : 7,129.13 = 2,808.18 : x
  2. Step 2: Convert to fraction form
    5,166.02/7,129.13 = 2,808.18/x
  3. Step 3: Cross multiply
    5,166.02x = 7,129.13 × 2,808.18
  4. Step 4: Simplify right side
    5,166.02x = 20,019,866.24
  5. Step 5: Solve for x
    x = 20,019,866.24/5,166.02
  6. Step 6: Final answer
    x = 3,875.30

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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.