Home / 2,957.42-4,079.48-1,910.10

Finding the Fourth Proportional to 2,957.42, 4,079.48 and 1,910.10

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Solution

The fourth proportional to 2,957.42, 4,079.48 and 1,910.10 is: 2,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.42 : 4,079.48 = 1,910.10 : x
  2. Step 2: Convert to fraction form
    2,957.42/4,079.48 = 1,910.10/x
  3. Step 3: Cross multiply
    2,957.42x = 4,079.48 × 1,910.10
  4. Step 4: Simplify right side
    2,957.42x = 7,792,214.75
  5. Step 5: Solve for x
    x = 7,792,214.75/2,957.42
  6. Step 6: Final answer
    x = 2,634.80

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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.