Home / 7,403.05-10,215.78-4,045.89

Finding the Fourth Proportional to 7,403.05, 10,215.78 and 4,045.89

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Solution

The fourth proportional to 7,403.05, 10,215.78 and 4,045.89 is: 5,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,403.05 : 10,215.78 = 4,045.89 : x
  2. Step 2: Convert to fraction form
    7,403.05/10,215.78 = 4,045.89/x
  3. Step 3: Cross multiply
    7,403.05x = 10,215.78 × 4,045.89
  4. Step 4: Simplify right side
    7,403.05x = 41,331,922.14
  5. Step 5: Solve for x
    x = 41,331,922.14/7,403.05
  6. Step 6: Final answer
    x = 5,583.09

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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.