Home / 7,775.28-10,729.83-4,238.52

Finding the Fourth Proportional to 7,775.28, 10,729.83 and 4,238.52

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Solution

The fourth proportional to 7,775.28, 10,729.83 and 4,238.52 is: 5,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.28 : 10,729.83 = 4,238.52 : x
  2. Step 2: Convert to fraction form
    7,775.28/10,729.83 = 4,238.52/x
  3. Step 3: Cross multiply
    7,775.28x = 10,729.83 × 4,238.52
  4. Step 4: Simplify right side
    7,775.28x = 45,478,599.05
  5. Step 5: Solve for x
    x = 45,478,599.05/7,775.28
  6. Step 6: Final answer
    x = 5,849.13

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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.