Home / 1,773.40-2,439.84-1,724.80

Finding the Fourth Proportional to 1,773.40, 2,439.84 and 1,724.80

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Solution

The fourth proportional to 1,773.40, 2,439.84 and 1,724.80 is: 2,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773.40 : 2,439.84 = 1,724.80 : x
  2. Step 2: Convert to fraction form
    1,773.40/2,439.84 = 1,724.80/x
  3. Step 3: Cross multiply
    1,773.40x = 2,439.84 × 1,724.80
  4. Step 4: Simplify right side
    1,773.40x = 4,208,236.03
  5. Step 5: Solve for x
    x = 4,208,236.03/1,773.40
  6. Step 6: Final answer
    x = 2,372.98

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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.