Home / 7,429.40-10,252.38-4,072.28

Finding the Fourth Proportional to 7,429.40, 10,252.38 and 4,072.28

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Solution

The fourth proportional to 7,429.40, 10,252.38 and 4,072.28 is: 5,619.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.40 : 10,252.38 = 4,072.28 : x
  2. Step 2: Convert to fraction form
    7,429.40/10,252.38 = 4,072.28/x
  3. Step 3: Cross multiply
    7,429.40x = 10,252.38 × 4,072.28
  4. Step 4: Simplify right side
    7,429.40x = 41,750,562.03
  5. Step 5: Solve for x
    x = 41,750,562.03/7,429.40
  6. Step 6: Final answer
    x = 5,619.64

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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.