Home / 2,957.12-4,080.64-1,777.44

Finding the Fourth Proportional to 2,957.12, 4,080.64 and 1,777.44

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Solution

The fourth proportional to 2,957.12, 4,080.64 and 1,777.44 is: 2,452.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.12 : 4,080.64 = 1,777.44 : x
  2. Step 2: Convert to fraction form
    2,957.12/4,080.64 = 1,777.44/x
  3. Step 3: Cross multiply
    2,957.12x = 4,080.64 × 1,777.44
  4. Step 4: Simplify right side
    2,957.12x = 7,253,092.76
  5. Step 5: Solve for x
    x = 7,253,092.76/2,957.12
  6. Step 6: Final answer
    x = 2,452.76

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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.