Home / 1,610.79-2,222.08-1,085.91

Finding the Fourth Proportional to 1,610.79, 2,222.08 and 1,085.91

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Solution

The fourth proportional to 1,610.79, 2,222.08 and 1,085.91 is: 1,498.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,610.79 : 2,222.08 = 1,085.91 : x
  2. Step 2: Convert to fraction form
    1,610.79/2,222.08 = 1,085.91/x
  3. Step 3: Cross multiply
    1,610.79x = 2,222.08 × 1,085.91
  4. Step 4: Simplify right side
    1,610.79x = 2,412,973.95
  5. Step 5: Solve for x
    x = 2,412,973.95/1,610.79
  6. Step 6: Final answer
    x = 1,498.01

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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.