Home / 5,431.08-8,148.02-3,181.51

Finding the Fourth Proportional to 5,431.08, 8,148.02 and 3,181.51

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Solution

The fourth proportional to 5,431.08, 8,148.02 and 3,181.51 is: 4,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.08 : 8,148.02 = 3,181.51 : x
  2. Step 2: Convert to fraction form
    5,431.08/8,148.02 = 3,181.51/x
  3. Step 3: Cross multiply
    5,431.08x = 8,148.02 × 3,181.51
  4. Step 4: Simplify right side
    5,431.08x = 25,922,950.46
  5. Step 5: Solve for x
    x = 25,922,950.46/5,431.08
  6. Step 6: Final answer
    x = 4,773.07

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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.