Home / 2,285.39-3,152.83-1,340.70

Finding the Fourth Proportional to 2,285.39, 3,152.83 and 1,340.70

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Solution

The fourth proportional to 2,285.39, 3,152.83 and 1,340.70 is: 1,849.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.39 : 3,152.83 = 1,340.70 : x
  2. Step 2: Convert to fraction form
    2,285.39/3,152.83 = 1,340.70/x
  3. Step 3: Cross multiply
    2,285.39x = 3,152.83 × 1,340.70
  4. Step 4: Simplify right side
    2,285.39x = 4,226,999.18
  5. Step 5: Solve for x
    x = 4,226,999.18/2,285.39
  6. Step 6: Final answer
    x = 1,849.57

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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.