Home / 5,715.63-7,887.86-3,358.53

Finding the Fourth Proportional to 5,715.63, 7,887.86 and 3,358.53

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Solution

The fourth proportional to 5,715.63, 7,887.86 and 3,358.53 is: 4,634.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.63 : 7,887.86 = 3,358.53 : x
  2. Step 2: Convert to fraction form
    5,715.63/7,887.86 = 3,358.53/x
  3. Step 3: Cross multiply
    5,715.63x = 7,887.86 × 3,358.53
  4. Step 4: Simplify right side
    5,715.63x = 26,491,614.45
  5. Step 5: Solve for x
    x = 26,491,614.45/5,715.63
  6. Step 6: Final answer
    x = 4,634.94

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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.