Home / 1,791.09-2,471.60-1,005.19

Finding the Fourth Proportional to 1,791.09, 2,471.60 and 1,005.19

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Solution

The fourth proportional to 1,791.09, 2,471.60 and 1,005.19 is: 1,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.09 : 2,471.60 = 1,005.19 : x
  2. Step 2: Convert to fraction form
    1,791.09/2,471.60 = 1,005.19/x
  3. Step 3: Cross multiply
    1,791.09x = 2,471.60 × 1,005.19
  4. Step 4: Simplify right side
    1,791.09x = 2,484,427.60
  5. Step 5: Solve for x
    x = 2,484,427.60/1,791.09
  6. Step 6: Final answer
    x = 1,387.10

Related Problems

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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.