Home / 2,567.18-3,851.68-835.80

Finding the Fourth Proportional to 2,567.18, 3,851.68 and 835.80

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Solution

The fourth proportional to 2,567.18, 3,851.68 and 835.80 is: 1,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,567.18 : 3,851.68 = 835.80 : x
  2. Step 2: Convert to fraction form
    2,567.18/3,851.68 = 835.80/x
  3. Step 3: Cross multiply
    2,567.18x = 3,851.68 × 835.80
  4. Step 4: Simplify right side
    2,567.18x = 3,219,234.14
  5. Step 5: Solve for x
    x = 3,219,234.14/2,567.18
  6. Step 6: Final answer
    x = 1,254.00

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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.