Home / 1,856.19-2,561.38-1,192.97

Finding the Fourth Proportional to 1,856.19, 2,561.38 and 1,192.97

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Solution

The fourth proportional to 1,856.19, 2,561.38 and 1,192.97 is: 1,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.19 : 2,561.38 = 1,192.97 : x
  2. Step 2: Convert to fraction form
    1,856.19/2,561.38 = 1,192.97/x
  3. Step 3: Cross multiply
    1,856.19x = 2,561.38 × 1,192.97
  4. Step 4: Simplify right side
    1,856.19x = 3,055,649.50
  5. Step 5: Solve for x
    x = 3,055,649.50/1,856.19
  6. Step 6: Final answer
    x = 1,646.19

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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.