Home / 4,123.80-5,690.64-2,331.24

Finding the Fourth Proportional to 4,123.80, 5,690.64 and 2,331.24

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Solution

The fourth proportional to 4,123.80, 5,690.64 and 2,331.24 is: 3,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,123.80 : 5,690.64 = 2,331.24 : x
  2. Step 2: Convert to fraction form
    4,123.80/5,690.64 = 2,331.24/x
  3. Step 3: Cross multiply
    4,123.80x = 5,690.64 × 2,331.24
  4. Step 4: Simplify right side
    4,123.80x = 13,266,247.59
  5. Step 5: Solve for x
    x = 13,266,247.59/4,123.80
  6. Step 6: Final answer
    x = 3,217.00

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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.