Home / 7,415.70-10,231.56-4,271.28

Finding the Fourth Proportional to 7,415.70, 10,231.56 and 4,271.28

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Solution

The fourth proportional to 7,415.70, 10,231.56 and 4,271.28 is: 5,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,415.70 : 10,231.56 = 4,271.28 : x
  2. Step 2: Convert to fraction form
    7,415.70/10,231.56 = 4,271.28/x
  3. Step 3: Cross multiply
    7,415.70x = 10,231.56 × 4,271.28
  4. Step 4: Simplify right side
    7,415.70x = 43,701,857.60
  5. Step 5: Solve for x
    x = 43,701,857.60/7,415.70
  6. Step 6: Final answer
    x = 5,893.15

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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.