Home / 7,238.73-9,988.16-4,255.17

Finding the Fourth Proportional to 7,238.73, 9,988.16 and 4,255.17

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Solution

The fourth proportional to 7,238.73, 9,988.16 and 4,255.17 is: 5,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.73 : 9,988.16 = 4,255.17 : x
  2. Step 2: Convert to fraction form
    7,238.73/9,988.16 = 4,255.17/x
  3. Step 3: Cross multiply
    7,238.73x = 9,988.16 × 4,255.17
  4. Step 4: Simplify right side
    7,238.73x = 42,501,247.57
  5. Step 5: Solve for x
    x = 42,501,247.57/7,238.73
  6. Step 6: Final answer
    x = 5,871.37

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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.