Home / 5,715.45-7,885.87-3,357.13

Finding the Fourth Proportional to 5,715.45, 7,885.87 and 3,357.13

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Solution

The fourth proportional to 5,715.45, 7,885.87 and 3,357.13 is: 4,631.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.45 : 7,885.87 = 3,357.13 : x
  2. Step 2: Convert to fraction form
    5,715.45/7,885.87 = 3,357.13/x
  3. Step 3: Cross multiply
    5,715.45x = 7,885.87 × 3,357.13
  4. Step 4: Simplify right side
    5,715.45x = 26,473,890.75
  5. Step 5: Solve for x
    x = 26,473,890.75/5,715.45
  6. Step 6: Final answer
    x = 4,631.99

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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.