Home / 1,930.12-2,663.56-1,045.91

Finding the Fourth Proportional to 1,930.12, 2,663.56 and 1,045.91

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Solution

The fourth proportional to 1,930.12, 2,663.56 and 1,045.91 is: 1,443.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.12 : 2,663.56 = 1,045.91 : x
  2. Step 2: Convert to fraction form
    1,930.12/2,663.56 = 1,045.91/x
  3. Step 3: Cross multiply
    1,930.12x = 2,663.56 × 1,045.91
  4. Step 4: Simplify right side
    1,930.12x = 2,785,852.01
  5. Step 5: Solve for x
    x = 2,785,852.01/1,930.12
  6. Step 6: Final answer
    x = 1,443.36

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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.