Home / 3,218.23-4,825.50-1,715.40

Finding the Fourth Proportional to 3,218.23, 4,825.50 and 1,715.40

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Solution

The fourth proportional to 3,218.23, 4,825.50 and 1,715.40 is: 2,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.23 : 4,825.50 = 1,715.40 : x
  2. Step 2: Convert to fraction form
    3,218.23/4,825.50 = 1,715.40/x
  3. Step 3: Cross multiply
    3,218.23x = 4,825.50 × 1,715.40
  4. Step 4: Simplify right side
    3,218.23x = 8,277,656.27
  5. Step 5: Solve for x
    x = 8,277,656.27/3,218.23
  6. Step 6: Final answer
    x = 2,572.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.