Home / 1,533.38-2,116.10-834.80

Finding the Fourth Proportional to 1,533.38, 2,116.10 and 834.80

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Solution

The fourth proportional to 1,533.38, 2,116.10 and 834.80 is: 1,152.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,533.38 : 2,116.10 = 834.80 : x
  2. Step 2: Convert to fraction form
    1,533.38/2,116.10 = 834.80/x
  3. Step 3: Cross multiply
    1,533.38x = 2,116.10 × 834.80
  4. Step 4: Simplify right side
    1,533.38x = 1,766,511.79
  5. Step 5: Solve for x
    x = 1,766,511.79/1,533.38
  6. Step 6: Final answer
    x = 1,152.04

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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.