Home / 7,528.09-10,388.60-4,170.91

Finding the Fourth Proportional to 7,528.09, 10,388.60 and 4,170.91

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Solution

The fourth proportional to 7,528.09, 10,388.60 and 4,170.91 is: 5,755.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,528.09 : 10,388.60 = 4,170.91 : x
  2. Step 2: Convert to fraction form
    7,528.09/10,388.60 = 4,170.91/x
  3. Step 3: Cross multiply
    7,528.09x = 10,388.60 × 4,170.91
  4. Step 4: Simplify right side
    7,528.09x = 43,329,894.77
  5. Step 5: Solve for x
    x = 43,329,894.77/7,528.09
  6. Step 6: Final answer
    x = 5,755.76

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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.