Home / 4,945.12-7,417.68-1,984.92

Finding the Fourth Proportional to 4,945.12, 7,417.68 and 1,984.92

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Solution

The fourth proportional to 4,945.12, 7,417.68 and 1,984.92 is: 2,977.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.12 : 7,417.68 = 1,984.92 : x
  2. Step 2: Convert to fraction form
    4,945.12/7,417.68 = 1,984.92/x
  3. Step 3: Cross multiply
    4,945.12x = 7,417.68 × 1,984.92
  4. Step 4: Simplify right side
    4,945.12x = 14,723,501.39
  5. Step 5: Solve for x
    x = 14,723,501.39/4,945.12
  6. Step 6: Final answer
    x = 2,977.38

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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.