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Finding the Fourth Proportional to 7,590.34, 11,387.74 and 3,895.15

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Solution

The fourth proportional to 7,590.34, 11,387.74 and 3,895.15 is: 5,843.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,590.34 : 11,387.74 = 3,895.15 : x
  2. Step 2: Convert to fraction form
    7,590.34/11,387.74 = 3,895.15/x
  3. Step 3: Cross multiply
    7,590.34x = 11,387.74 × 3,895.15
  4. Step 4: Simplify right side
    7,590.34x = 44,356,955.46
  5. Step 5: Solve for x
    x = 44,356,955.46/7,590.34
  6. Step 6: Final answer
    x = 5,843.87

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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.