Home / 1,930.02-2,663.58-1,090.78

Finding the Fourth Proportional to 1,930.02, 2,663.58 and 1,090.78

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Solution

The fourth proportional to 1,930.02, 2,663.58 and 1,090.78 is: 1,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.02 : 2,663.58 = 1,090.78 : x
  2. Step 2: Convert to fraction form
    1,930.02/2,663.58 = 1,090.78/x
  3. Step 3: Cross multiply
    1,930.02x = 2,663.58 × 1,090.78
  4. Step 4: Simplify right side
    1,930.02x = 2,905,379.79
  5. Step 5: Solve for x
    x = 2,905,379.79/1,930.02
  6. Step 6: Final answer
    x = 1,505.36

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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.