Home / 5,169.37-7,134.10-2,931.44

Finding the Fourth Proportional to 5,169.37, 7,134.10 and 2,931.44

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Solution

The fourth proportional to 5,169.37, 7,134.10 and 2,931.44 is: 4,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.37 : 7,134.10 = 2,931.44 : x
  2. Step 2: Convert to fraction form
    5,169.37/7,134.10 = 2,931.44/x
  3. Step 3: Cross multiply
    5,169.37x = 7,134.10 × 2,931.44
  4. Step 4: Simplify right side
    5,169.37x = 20,913,191.48
  5. Step 5: Solve for x
    x = 20,913,191.48/5,169.37
  6. Step 6: Final answer
    x = 4,045.60

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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.