Home / 1,785.18-2,461.56-1,121.22

Finding the Fourth Proportional to 1,785.18, 2,461.56 and 1,121.22

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Solution

The fourth proportional to 1,785.18, 2,461.56 and 1,121.22 is: 1,546.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785.18 : 2,461.56 = 1,121.22 : x
  2. Step 2: Convert to fraction form
    1,785.18/2,461.56 = 1,121.22/x
  3. Step 3: Cross multiply
    1,785.18x = 2,461.56 × 1,121.22
  4. Step 4: Simplify right side
    1,785.18x = 2,759,950.30
  5. Step 5: Solve for x
    x = 2,759,950.30/1,785.18
  6. Step 6: Final answer
    x = 1,546.03

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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.