Home / 3,878.89-5,818.35-1,572.01

Finding the Fourth Proportional to 3,878.89, 5,818.35 and 1,572.01

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Solution

The fourth proportional to 3,878.89, 5,818.35 and 1,572.01 is: 2,358.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,878.89 : 5,818.35 = 1,572.01 : x
  2. Step 2: Convert to fraction form
    3,878.89/5,818.35 = 1,572.01/x
  3. Step 3: Cross multiply
    3,878.89x = 5,818.35 × 1,572.01
  4. Step 4: Simplify right side
    3,878.89x = 9,146,504.38
  5. Step 5: Solve for x
    x = 9,146,504.38/3,878.89
  6. Step 6: Final answer
    x = 2,358.02

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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.