Home / 2,856.31-4,279.58-1,558.69

Finding the Fourth Proportional to 2,856.31, 4,279.58 and 1,558.69

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Solution

The fourth proportional to 2,856.31, 4,279.58 and 1,558.69 is: 2,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.31 : 4,279.58 = 1,558.69 : x
  2. Step 2: Convert to fraction form
    2,856.31/4,279.58 = 1,558.69/x
  3. Step 3: Cross multiply
    2,856.31x = 4,279.58 × 1,558.69
  4. Step 4: Simplify right side
    2,856.31x = 6,670,530.76
  5. Step 5: Solve for x
    x = 6,670,530.76/2,856.31
  6. Step 6: Final answer
    x = 2,335.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.