Home / 2,930.28-4,043.62-1,603.72

Finding the Fourth Proportional to 2,930.28, 4,043.62 and 1,603.72

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Solution

The fourth proportional to 2,930.28, 4,043.62 and 1,603.72 is: 2,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,930.28 : 4,043.62 = 1,603.72 : x
  2. Step 2: Convert to fraction form
    2,930.28/4,043.62 = 1,603.72/x
  3. Step 3: Cross multiply
    2,930.28x = 4,043.62 × 1,603.72
  4. Step 4: Simplify right side
    2,930.28x = 6,484,834.27
  5. Step 5: Solve for x
    x = 6,484,834.27/2,930.28
  6. Step 6: Final answer
    x = 2,213.04

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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.