Home / 2,842.02-3,920.63-1,847.61

Finding the Fourth Proportional to 2,842.02, 3,920.63 and 1,847.61

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Solution

The fourth proportional to 2,842.02, 3,920.63 and 1,847.61 is: 2,548.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,842.02 : 3,920.63 = 1,847.61 : x
  2. Step 2: Convert to fraction form
    2,842.02/3,920.63 = 1,847.61/x
  3. Step 3: Cross multiply
    2,842.02x = 3,920.63 × 1,847.61
  4. Step 4: Simplify right side
    2,842.02x = 7,243,785.96
  5. Step 5: Solve for x
    x = 7,243,785.96/2,842.02
  6. Step 6: Final answer
    x = 2,548.82

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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.