Home / 3,530.09-4,871.21-1,958.18

Finding the Fourth Proportional to 3,530.09, 4,871.21 and 1,958.18

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Solution

The fourth proportional to 3,530.09, 4,871.21 and 1,958.18 is: 2,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,530.09 : 4,871.21 = 1,958.18 : x
  2. Step 2: Convert to fraction form
    3,530.09/4,871.21 = 1,958.18/x
  3. Step 3: Cross multiply
    3,530.09x = 4,871.21 × 1,958.18
  4. Step 4: Simplify right side
    3,530.09x = 9,538,696.21
  5. Step 5: Solve for x
    x = 9,538,696.21/3,530.09
  6. Step 6: Final answer
    x = 2,702.11

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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.