Home / 3,820.40-5,730.24-1,047.32

Finding the Fourth Proportional to 3,820.40, 5,730.24 and 1,047.32

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Solution

The fourth proportional to 3,820.40, 5,730.24 and 1,047.32 is: 1,570.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,820.40 : 5,730.24 = 1,047.32 : x
  2. Step 2: Convert to fraction form
    3,820.40/5,730.24 = 1,047.32/x
  3. Step 3: Cross multiply
    3,820.40x = 5,730.24 × 1,047.32
  4. Step 4: Simplify right side
    3,820.40x = 6,001,394.96
  5. Step 5: Solve for x
    x = 6,001,394.96/3,820.40
  6. Step 6: Final answer
    x = 1,570.88

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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.