Home / 1,532.70-2,120.64-1,336.62

Finding the Fourth Proportional to 1,532.70, 2,120.64 and 1,336.62

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Solution

The fourth proportional to 1,532.70, 2,120.64 and 1,336.62 is: 1,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.70 : 2,120.64 = 1,336.62 : x
  2. Step 2: Convert to fraction form
    1,532.70/2,120.64 = 1,336.62/x
  3. Step 3: Cross multiply
    1,532.70x = 2,120.64 × 1,336.62
  4. Step 4: Simplify right side
    1,532.70x = 2,834,489.84
  5. Step 5: Solve for x
    x = 2,834,489.84/1,532.70
  6. Step 6: Final answer
    x = 1,849.34

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Half scale
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Double scale
Find fourth proportional to 1,533.70, 2,122.02 and 1,337.62
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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.