Home / 1,724.48-2,378.64-1,199.84

Finding the Fourth Proportional to 1,724.48, 2,378.64 and 1,199.84

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Solution

The fourth proportional to 1,724.48, 2,378.64 and 1,199.84 is: 1,654.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.48 : 2,378.64 = 1,199.84 : x
  2. Step 2: Convert to fraction form
    1,724.48/2,378.64 = 1,199.84/x
  3. Step 3: Cross multiply
    1,724.48x = 2,378.64 × 1,199.84
  4. Step 4: Simplify right side
    1,724.48x = 2,853,987.42
  5. Step 5: Solve for x
    x = 2,853,987.42/1,724.48
  6. Step 6: Final answer
    x = 1,654.98

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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.