Home / 1,334.16-1,841.36-837.12

Finding the Fourth Proportional to 1,334.16, 1,841.36 and 837.12

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Solution

The fourth proportional to 1,334.16, 1,841.36 and 837.12 is: 1,155.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,334.16 : 1,841.36 = 837.12 : x
  2. Step 2: Convert to fraction form
    1,334.16/1,841.36 = 837.12/x
  3. Step 3: Cross multiply
    1,334.16x = 1,841.36 × 837.12
  4. Step 4: Simplify right side
    1,334.16x = 1,541,439.28
  5. Step 5: Solve for x
    x = 1,541,439.28/1,334.16
  6. Step 6: Final answer
    x = 1,155.36

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Half scale
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Double scale
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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.