Home / 2,853.66-3,938.40-1,674.84

Finding the Fourth Proportional to 2,853.66, 3,938.40 and 1,674.84

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Solution

The fourth proportional to 2,853.66, 3,938.40 and 1,674.84 is: 2,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.66 : 3,938.40 = 1,674.84 : x
  2. Step 2: Convert to fraction form
    2,853.66/3,938.40 = 1,674.84/x
  3. Step 3: Cross multiply
    2,853.66x = 3,938.40 × 1,674.84
  4. Step 4: Simplify right side
    2,853.66x = 6,596,189.86
  5. Step 5: Solve for x
    x = 6,596,189.86/2,853.66
  6. Step 6: Final answer
    x = 2,311.48

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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.