Home / 1,930.10-2,663.63-1,090.84

Finding the Fourth Proportional to 1,930.10, 2,663.63 and 1,090.84

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Solution

The fourth proportional to 1,930.10, 2,663.63 and 1,090.84 is: 1,505.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.10 : 2,663.63 = 1,090.84 : x
  2. Step 2: Convert to fraction form
    1,930.10/2,663.63 = 1,090.84/x
  3. Step 3: Cross multiply
    1,930.10x = 2,663.63 × 1,090.84
  4. Step 4: Simplify right side
    1,930.10x = 2,905,590.22
  5. Step 5: Solve for x
    x = 2,905,590.22/1,930.10
  6. Step 6: Final answer
    x = 1,505.41

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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.