Home / 3,530.32-4,871.80-1,958.40

Finding the Fourth Proportional to 3,530.32, 4,871.80 and 1,958.40

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Solution

The fourth proportional to 3,530.32, 4,871.80 and 1,958.40 is: 2,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.32 : 4,871.80 = 1,958.40 : x
  2. Step 2: Convert to fraction form
    3,530.32/4,871.80 = 1,958.40/x
  3. Step 3: Cross multiply
    3,530.32x = 4,871.80 × 1,958.40
  4. Step 4: Simplify right side
    3,530.32x = 9,540,933.12
  5. Step 5: Solve for x
    x = 9,540,933.12/3,530.32
  6. Step 6: Final answer
    x = 2,702.57

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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.