Home / 3,980.46-5,971.90-1,607.32

Finding the Fourth Proportional to 3,980.46, 5,971.90 and 1,607.32

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Solution

The fourth proportional to 3,980.46, 5,971.90 and 1,607.32 is: 2,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980.46 : 5,971.90 = 1,607.32 : x
  2. Step 2: Convert to fraction form
    3,980.46/5,971.90 = 1,607.32/x
  3. Step 3: Cross multiply
    3,980.46x = 5,971.90 × 1,607.32
  4. Step 4: Simplify right side
    3,980.46x = 9,598,746.27
  5. Step 5: Solve for x
    x = 9,598,746.27/3,980.46
  6. Step 6: Final answer
    x = 2,411.47

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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.