Home / 7,579.72-10,458.79-4,222.45

Finding the Fourth Proportional to 7,579.72, 10,458.79 and 4,222.45

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Solution

The fourth proportional to 7,579.72, 10,458.79 and 4,222.45 is: 5,826.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.72 : 10,458.79 = 4,222.45 : x
  2. Step 2: Convert to fraction form
    7,579.72/10,458.79 = 4,222.45/x
  3. Step 3: Cross multiply
    7,579.72x = 10,458.79 × 4,222.45
  4. Step 4: Simplify right side
    7,579.72x = 44,161,679.13
  5. Step 5: Solve for x
    x = 44,161,679.13/7,579.72
  6. Step 6: Final answer
    x = 5,826.29

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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.