Home / 2,543.76-3,821.58-1,570.68

Finding the Fourth Proportional to 2,543.76, 3,821.58 and 1,570.68

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Solution

The fourth proportional to 2,543.76, 3,821.58 and 1,570.68 is: 2,359.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.76 : 3,821.58 = 1,570.68 : x
  2. Step 2: Convert to fraction form
    2,543.76/3,821.58 = 1,570.68/x
  3. Step 3: Cross multiply
    2,543.76x = 3,821.58 × 1,570.68
  4. Step 4: Simplify right side
    2,543.76x = 6,002,479.27
  5. Step 5: Solve for x
    x = 6,002,479.27/2,543.76
  6. Step 6: Final answer
    x = 2,359.69

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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.