Home / 3,815.18-5,720.30-1,622.50

Finding the Fourth Proportional to 3,815.18, 5,720.30 and 1,622.50

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Solution

The fourth proportional to 3,815.18, 5,720.30 and 1,622.50 is: 2,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.18 : 5,720.30 = 1,622.50 : x
  2. Step 2: Convert to fraction form
    3,815.18/5,720.30 = 1,622.50/x
  3. Step 3: Cross multiply
    3,815.18x = 5,720.30 × 1,622.50
  4. Step 4: Simplify right side
    3,815.18x = 9,281,186.75
  5. Step 5: Solve for x
    x = 9,281,186.75/3,815.18
  6. Step 6: Final answer
    x = 2,432.70

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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.