Home / 2,784.18-3,840.96-1,664.76

Finding the Fourth Proportional to 2,784.18, 3,840.96 and 1,664.76

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Solution

The fourth proportional to 2,784.18, 3,840.96 and 1,664.76 is: 2,296.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.18 : 3,840.96 = 1,664.76 : x
  2. Step 2: Convert to fraction form
    2,784.18/3,840.96 = 1,664.76/x
  3. Step 3: Cross multiply
    2,784.18x = 3,840.96 × 1,664.76
  4. Step 4: Simplify right side
    2,784.18x = 6,394,276.57
  5. Step 5: Solve for x
    x = 6,394,276.57/2,784.18
  6. Step 6: Final answer
    x = 2,296.65

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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.