Home / 7,899.72-11,849.58-2,355

Finding the Fourth Proportional to 7,899.72, 11,849.58 and 2,355

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Solution

The fourth proportional to 7,899.72, 11,849.58 and 2,355 is: 3,532.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,899.72 : 11,849.58 = 2,355 : x
  2. Step 2: Convert to fraction form
    7,899.72/11,849.58 = 2,355/x
  3. Step 3: Cross multiply
    7,899.72x = 11,849.58 × 2,355
  4. Step 4: Simplify right side
    7,899.72x = 27,905,760.90
  5. Step 5: Solve for x
    x = 27,905,760.90/7,899.72
  6. Step 6: Final answer
    x = 3,532.50

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Half scale
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Double scale
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Similar ratio
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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.