Home / 1,610.24-2,221.37-1,138.14

Finding the Fourth Proportional to 1,610.24, 2,221.37 and 1,138.14

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Solution

The fourth proportional to 1,610.24, 2,221.37 and 1,138.14 is: 1,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.24 : 2,221.37 = 1,138.14 : x
  2. Step 2: Convert to fraction form
    1,610.24/2,221.37 = 1,138.14/x
  3. Step 3: Cross multiply
    1,610.24x = 2,221.37 × 1,138.14
  4. Step 4: Simplify right side
    1,610.24x = 2,528,224.36
  5. Step 5: Solve for x
    x = 2,528,224.36/1,610.24
  6. Step 6: Final answer
    x = 1,570.10

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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.