Home / 2,930.13-4,043.48-1,603.80

Finding the Fourth Proportional to 2,930.13, 4,043.48 and 1,603.80

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Solution

The fourth proportional to 2,930.13, 4,043.48 and 1,603.80 is: 2,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.13 : 4,043.48 = 1,603.80 : x
  2. Step 2: Convert to fraction form
    2,930.13/4,043.48 = 1,603.80/x
  3. Step 3: Cross multiply
    2,930.13x = 4,043.48 × 1,603.80
  4. Step 4: Simplify right side
    2,930.13x = 6,484,925.21
  5. Step 5: Solve for x
    x = 6,484,925.21/2,930.13
  6. Step 6: Final answer
    x = 2,213.19

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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.