Home / 2,949.30-4,070.10-1,623.12

Finding the Fourth Proportional to 2,949.30, 4,070.10 and 1,623.12

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Solution

The fourth proportional to 2,949.30, 4,070.10 and 1,623.12 is: 2,239.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.30 : 4,070.10 = 1,623.12 : x
  2. Step 2: Convert to fraction form
    2,949.30/4,070.10 = 1,623.12/x
  3. Step 3: Cross multiply
    2,949.30x = 4,070.10 × 1,623.12
  4. Step 4: Simplify right side
    2,949.30x = 6,606,260.71
  5. Step 5: Solve for x
    x = 6,606,260.71/2,949.30
  6. Step 6: Final answer
    x = 2,239.94

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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.