Home / 1,610.19-2,415.28-394.19

Finding the Fourth Proportional to 1,610.19, 2,415.28 and 394.19

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Solution

The fourth proportional to 1,610.19, 2,415.28 and 394.19 is: 591.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.19 : 2,415.28 = 394.19 : x
  2. Step 2: Convert to fraction form
    1,610.19/2,415.28 = 394.19/x
  3. Step 3: Cross multiply
    1,610.19x = 2,415.28 × 394.19
  4. Step 4: Simplify right side
    1,610.19x = 952,073.68
  5. Step 5: Solve for x
    x = 952,073.68/1,610.19
  6. Step 6: Final answer
    x = 591.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.