Home / 1,549.47-2,139.08-1,194.62

Finding the Fourth Proportional to 1,549.47, 2,139.08 and 1,194.62

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Solution

The fourth proportional to 1,549.47, 2,139.08 and 1,194.62 is: 1,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.47 : 2,139.08 = 1,194.62 : x
  2. Step 2: Convert to fraction form
    1,549.47/2,139.08 = 1,194.62/x
  3. Step 3: Cross multiply
    1,549.47x = 2,139.08 × 1,194.62
  4. Step 4: Simplify right side
    1,549.47x = 2,555,371.08
  5. Step 5: Solve for x
    x = 2,555,371.08/1,549.47
  6. Step 6: Final answer
    x = 1,649.19

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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.