Home / 3,818.60-5,719.80-2,506.40

Finding the Fourth Proportional to 3,818.60, 5,719.80 and 2,506.40

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Solution

The fourth proportional to 3,818.60, 5,719.80 and 2,506.40 is: 3,754.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818.60 : 5,719.80 = 2,506.40 : x
  2. Step 2: Convert to fraction form
    3,818.60/5,719.80 = 2,506.40/x
  3. Step 3: Cross multiply
    3,818.60x = 5,719.80 × 2,506.40
  4. Step 4: Simplify right side
    3,818.60x = 14,336,106.72
  5. Step 5: Solve for x
    x = 14,336,106.72/3,818.60
  6. Step 6: Final answer
    x = 3,754.28

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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.