Home / 7,431.72-10,255.75-4,074.68

Finding the Fourth Proportional to 7,431.72, 10,255.75 and 4,074.68

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Solution

The fourth proportional to 7,431.72, 10,255.75 and 4,074.68 is: 5,623.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.72 : 10,255.75 = 4,074.68 : x
  2. Step 2: Convert to fraction form
    7,431.72/10,255.75 = 4,074.68/x
  3. Step 3: Cross multiply
    7,431.72x = 10,255.75 × 4,074.68
  4. Step 4: Simplify right side
    7,431.72x = 41,788,899.41
  5. Step 5: Solve for x
    x = 41,788,899.41/7,431.72
  6. Step 6: Final answer
    x = 5,623.05

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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.