Home / 6,370.46-9,555.62-1,987.90

Finding the Fourth Proportional to 6,370.46, 9,555.62 and 1,987.90

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Solution

The fourth proportional to 6,370.46, 9,555.62 and 1,987.90 is: 2,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,370.46 : 9,555.62 = 1,987.90 : x
  2. Step 2: Convert to fraction form
    6,370.46/9,555.62 = 1,987.90/x
  3. Step 3: Cross multiply
    6,370.46x = 9,555.62 × 1,987.90
  4. Step 4: Simplify right side
    6,370.46x = 18,995,617.00
  5. Step 5: Solve for x
    x = 18,995,617.00/6,370.46
  6. Step 6: Final answer
    x = 2,981.83

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1.5x scale

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.