Home / 1,842.20-2,542.35-1,056.36

Finding the Fourth Proportional to 1,842.20, 2,542.35 and 1,056.36

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Solution

The fourth proportional to 1,842.20, 2,542.35 and 1,056.36 is: 1,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,842.20 : 2,542.35 = 1,056.36 : x
  2. Step 2: Convert to fraction form
    1,842.20/2,542.35 = 1,056.36/x
  3. Step 3: Cross multiply
    1,842.20x = 2,542.35 × 1,056.36
  4. Step 4: Simplify right side
    1,842.20x = 2,685,636.85
  5. Step 5: Solve for x
    x = 2,685,636.85/1,842.20
  6. Step 6: Final answer
    x = 1,457.85

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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.