Home / 5,181.02-7,149.81-2,823.11

Finding the Fourth Proportional to 5,181.02, 7,149.81 and 2,823.11

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Solution

The fourth proportional to 5,181.02, 7,149.81 and 2,823.11 is: 3,895.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.02 : 7,149.81 = 2,823.11 : x
  2. Step 2: Convert to fraction form
    5,181.02/7,149.81 = 2,823.11/x
  3. Step 3: Cross multiply
    5,181.02x = 7,149.81 × 2,823.11
  4. Step 4: Simplify right side
    5,181.02x = 20,184,700.11
  5. Step 5: Solve for x
    x = 20,184,700.11/5,181.02
  6. Step 6: Final answer
    x = 3,895.89

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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.