Home / 7,529.52-10,390.77-4,172.88

Finding the Fourth Proportional to 7,529.52, 10,390.77 and 4,172.88

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Solution

The fourth proportional to 7,529.52, 10,390.77 and 4,172.88 is: 5,758.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.52 : 10,390.77 = 4,172.88 : x
  2. Step 2: Convert to fraction form
    7,529.52/10,390.77 = 4,172.88/x
  3. Step 3: Cross multiply
    7,529.52x = 10,390.77 × 4,172.88
  4. Step 4: Simplify right side
    7,529.52x = 43,359,436.32
  5. Step 5: Solve for x
    x = 43,359,436.32/7,529.52
  6. Step 6: Final answer
    x = 5,758.59

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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.