Home / 2,949.90-4,070.72-1,623.57

Finding the Fourth Proportional to 2,949.90, 4,070.72 and 1,623.57

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Solution

The fourth proportional to 2,949.90, 4,070.72 and 1,623.57 is: 2,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.90 : 4,070.72 = 1,623.57 : x
  2. Step 2: Convert to fraction form
    2,949.90/4,070.72 = 1,623.57/x
  3. Step 3: Cross multiply
    2,949.90x = 4,070.72 × 1,623.57
  4. Step 4: Simplify right side
    2,949.90x = 6,609,090.75
  5. Step 5: Solve for x
    x = 6,609,090.75/2,949.90
  6. Step 6: Final answer
    x = 2,240.45

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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.