Home / 7,291.60-10,061.64-4,147.28

Finding the Fourth Proportional to 7,291.60, 10,061.64 and 4,147.28

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Solution

The fourth proportional to 7,291.60, 10,061.64 and 4,147.28 is: 5,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.60 : 10,061.64 = 4,147.28 : x
  2. Step 2: Convert to fraction form
    7,291.60/10,061.64 = 4,147.28/x
  3. Step 3: Cross multiply
    7,291.60x = 10,061.64 × 4,147.28
  4. Step 4: Simplify right side
    7,291.60x = 41,728,438.34
  5. Step 5: Solve for x
    x = 41,728,438.34/7,291.60
  6. Step 6: Final answer
    x = 5,722.81

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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.