Home / 1,558.58-2,341.10-1,236.20

Finding the Fourth Proportional to 1,558.58, 2,341.10 and 1,236.20

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Solution

The fourth proportional to 1,558.58, 2,341.10 and 1,236.20 is: 1,856.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.58 : 2,341.10 = 1,236.20 : x
  2. Step 2: Convert to fraction form
    1,558.58/2,341.10 = 1,236.20/x
  3. Step 3: Cross multiply
    1,558.58x = 2,341.10 × 1,236.20
  4. Step 4: Simplify right side
    1,558.58x = 2,894,059.20
  5. Step 5: Solve for x
    x = 2,894,059.20/1,558.58
  6. Step 6: Final answer
    x = 1,856.86

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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.