Home / 2,764.56-3,815.13-1,585.74

Finding the Fourth Proportional to 2,764.56, 3,815.13 and 1,585.74

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Solution

The fourth proportional to 2,764.56, 3,815.13 and 1,585.74 is: 2,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.56 : 3,815.13 = 1,585.74 : x
  2. Step 2: Convert to fraction form
    2,764.56/3,815.13 = 1,585.74/x
  3. Step 3: Cross multiply
    2,764.56x = 3,815.13 × 1,585.74
  4. Step 4: Simplify right side
    2,764.56x = 6,049,804.25
  5. Step 5: Solve for x
    x = 6,049,804.25/2,764.56
  6. Step 6: Final answer
    x = 2,188.34

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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.