Home / 7,534.45-11,300.39-1,987.85

Finding the Fourth Proportional to 7,534.45, 11,300.39 and 1,987.85

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Solution

The fourth proportional to 7,534.45, 11,300.39 and 1,987.85 is: 2,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,534.45 : 11,300.39 = 1,987.85 : x
  2. Step 2: Convert to fraction form
    7,534.45/11,300.39 = 1,987.85/x
  3. Step 3: Cross multiply
    7,534.45x = 11,300.39 × 1,987.85
  4. Step 4: Simplify right side
    7,534.45x = 22,463,468.65
  5. Step 5: Solve for x
    x = 22,463,468.65/7,534.45
  6. Step 6: Final answer
    x = 2,981.43

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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.