Home / 2,957.90-4,080.68-2,074.29

Finding the Fourth Proportional to 2,957.90, 4,080.68 and 2,074.29

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Solution

The fourth proportional to 2,957.90, 4,080.68 and 2,074.29 is: 2,861.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.90 : 4,080.68 = 2,074.29 : x
  2. Step 2: Convert to fraction form
    2,957.90/4,080.68 = 2,074.29/x
  3. Step 3: Cross multiply
    2,957.90x = 4,080.68 × 2,074.29
  4. Step 4: Simplify right side
    2,957.90x = 8,464,503.35
  5. Step 5: Solve for x
    x = 8,464,503.35/2,957.90
  6. Step 6: Final answer
    x = 2,861.66

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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.