Home / 1,724.94-2,381.85-1,165.46

Finding the Fourth Proportional to 1,724.94, 2,381.85 and 1,165.46

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Solution

The fourth proportional to 1,724.94, 2,381.85 and 1,165.46 is: 1,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.94 : 2,381.85 = 1,165.46 : x
  2. Step 2: Convert to fraction form
    1,724.94/2,381.85 = 1,165.46/x
  3. Step 3: Cross multiply
    1,724.94x = 2,381.85 × 1,165.46
  4. Step 4: Simplify right side
    1,724.94x = 2,775,938.99
  5. Step 5: Solve for x
    x = 2,775,938.99/1,724.94
  6. Step 6: Final answer
    x = 1,609.30

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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.