Home / 2,948.30-4,068.72-1,622.12

Finding the Fourth Proportional to 2,948.30, 4,068.72 and 1,622.12

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Solution

The fourth proportional to 2,948.30, 4,068.72 and 1,622.12 is: 2,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.30 : 4,068.72 = 1,622.12 : x
  2. Step 2: Convert to fraction form
    2,948.30/4,068.72 = 1,622.12/x
  3. Step 3: Cross multiply
    2,948.30x = 4,068.72 × 1,622.12
  4. Step 4: Simplify right side
    2,948.30x = 6,599,952.09
  5. Step 5: Solve for x
    x = 6,599,952.09/2,948.30
  6. Step 6: Final answer
    x = 2,238.56

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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.