Home / 1,341.11-1,850.75-810.02

Finding the Fourth Proportional to 1,341.11, 1,850.75 and 810.02

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Solution

The fourth proportional to 1,341.11, 1,850.75 and 810.02 is: 1,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.11 : 1,850.75 = 810.02 : x
  2. Step 2: Convert to fraction form
    1,341.11/1,850.75 = 810.02/x
  3. Step 3: Cross multiply
    1,341.11x = 1,850.75 × 810.02
  4. Step 4: Simplify right side
    1,341.11x = 1,499,144.52
  5. Step 5: Solve for x
    x = 1,499,144.52/1,341.11
  6. Step 6: Final answer
    x = 1,117.84

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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.