Home / 5,169.98-7,133.46-2,931.68

Finding the Fourth Proportional to 5,169.98, 7,133.46 and 2,931.68

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Solution

The fourth proportional to 5,169.98, 7,133.46 and 2,931.68 is: 4,045.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,169.98 : 7,133.46 = 2,931.68 : x
  2. Step 2: Convert to fraction form
    5,169.98/7,133.46 = 2,931.68/x
  3. Step 3: Cross multiply
    5,169.98x = 7,133.46 × 2,931.68
  4. Step 4: Simplify right side
    5,169.98x = 20,913,022.01
  5. Step 5: Solve for x
    x = 20,913,022.01/5,169.98
  6. Step 6: Final answer
    x = 4,045.09

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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.