Home / 3,807.60-5,711.40-2,271.60

Finding the Fourth Proportional to 3,807.60, 5,711.40 and 2,271.60

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Solution

The fourth proportional to 3,807.60, 5,711.40 and 2,271.60 is: 3,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,807.60 : 5,711.40 = 2,271.60 : x
  2. Step 2: Convert to fraction form
    3,807.60/5,711.40 = 2,271.60/x
  3. Step 3: Cross multiply
    3,807.60x = 5,711.40 × 2,271.60
  4. Step 4: Simplify right side
    3,807.60x = 12,974,016.24
  5. Step 5: Solve for x
    x = 12,974,016.24/3,807.60
  6. Step 6: Final answer
    x = 3,407.40

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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.