Home / 3,977.85-5,966.60-1,345.19

Finding the Fourth Proportional to 3,977.85, 5,966.60 and 1,345.19

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Solution

The fourth proportional to 3,977.85, 5,966.60 and 1,345.19 is: 2,017.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.85 : 5,966.60 = 1,345.19 : x
  2. Step 2: Convert to fraction form
    3,977.85/5,966.60 = 1,345.19/x
  3. Step 3: Cross multiply
    3,977.85x = 5,966.60 × 1,345.19
  4. Step 4: Simplify right side
    3,977.85x = 8,026,184.18
  5. Step 5: Solve for x
    x = 8,026,184.18/3,977.85
  6. Step 6: Final answer
    x = 2,017.72

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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.