Home / 3,311.34-4,569.59-1,819.18

Finding the Fourth Proportional to 3,311.34, 4,569.59 and 1,819.18

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Solution

The fourth proportional to 3,311.34, 4,569.59 and 1,819.18 is: 2,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.34 : 4,569.59 = 1,819.18 : x
  2. Step 2: Convert to fraction form
    3,311.34/4,569.59 = 1,819.18/x
  3. Step 3: Cross multiply
    3,311.34x = 4,569.59 × 1,819.18
  4. Step 4: Simplify right side
    3,311.34x = 8,312,909.06
  5. Step 5: Solve for x
    x = 8,312,909.06/3,311.34
  6. Step 6: Final answer
    x = 2,510.44

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Half scale
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Double scale
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Similar ratio
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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.