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Finding the Fourth Proportional to 7,333, 10,115.40 and 4,345.90

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Solution

The fourth proportional to 7,333, 10,115.40 and 4,345.90 is: 5,994.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,333 : 10,115.40 = 4,345.90 : x
  2. Step 2: Convert to fraction form
    7,333/10,115.40 = 4,345.90/x
  3. Step 3: Cross multiply
    7,333x = 10,115.40 × 4,345.90
  4. Step 4: Simplify right side
    7,333x = 43,960,516.86
  5. Step 5: Solve for x
    x = 43,960,516.86/7,333
  6. Step 6: Final answer
    x = 5,994.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.