Home / 2,930.19-4,043.63-1,603.88

Finding the Fourth Proportional to 2,930.19, 4,043.63 and 1,603.88

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Solution

The fourth proportional to 2,930.19, 4,043.63 and 1,603.88 is: 2,213.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.19 : 4,043.63 = 1,603.88 : x
  2. Step 2: Convert to fraction form
    2,930.19/4,043.63 = 1,603.88/x
  3. Step 3: Cross multiply
    2,930.19x = 4,043.63 × 1,603.88
  4. Step 4: Simplify right side
    2,930.19x = 6,485,514.47
  5. Step 5: Solve for x
    x = 6,485,514.47/2,930.19
  6. Step 6: Final answer
    x = 2,213.34

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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.