Home / 3,313.59-4,572.87-1,821.65

Finding the Fourth Proportional to 3,313.59, 4,572.87 and 1,821.65

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Solution

The fourth proportional to 3,313.59, 4,572.87 and 1,821.65 is: 2,513.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,313.59 : 4,572.87 = 1,821.65 : x
  2. Step 2: Convert to fraction form
    3,313.59/4,572.87 = 1,821.65/x
  3. Step 3: Cross multiply
    3,313.59x = 4,572.87 × 1,821.65
  4. Step 4: Simplify right side
    3,313.59x = 8,330,149.19
  5. Step 5: Solve for x
    x = 8,330,149.19/3,313.59
  6. Step 6: Final answer
    x = 2,513.93

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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.