Home / 3,513.74-5,271.40-1,871.86

Finding the Fourth Proportional to 3,513.74, 5,271.40 and 1,871.86

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Solution

The fourth proportional to 3,513.74, 5,271.40 and 1,871.86 is: 2,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,513.74 : 5,271.40 = 1,871.86 : x
  2. Step 2: Convert to fraction form
    3,513.74/5,271.40 = 1,871.86/x
  3. Step 3: Cross multiply
    3,513.74x = 5,271.40 × 1,871.86
  4. Step 4: Simplify right side
    3,513.74x = 9,867,322.80
  5. Step 5: Solve for x
    x = 9,867,322.80/3,513.74
  6. Step 6: Final answer
    x = 2,808.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.