Home / 7,289.72-10,059.76-4,145.88

Finding the Fourth Proportional to 7,289.72, 10,059.76 and 4,145.88

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Solution

The fourth proportional to 7,289.72, 10,059.76 and 4,145.88 is: 5,721.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,289.72 : 10,059.76 = 4,145.88 : x
  2. Step 2: Convert to fraction form
    7,289.72/10,059.76 = 4,145.88/x
  3. Step 3: Cross multiply
    7,289.72x = 10,059.76 × 4,145.88
  4. Step 4: Simplify right side
    7,289.72x = 41,706,557.79
  5. Step 5: Solve for x
    x = 41,706,557.79/7,289.72
  6. Step 6: Final answer
    x = 5,721.28

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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.