Home / 3,877.12-5,812.32-1,567.12

Finding the Fourth Proportional to 3,877.12, 5,812.32 and 1,567.12

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Solution

The fourth proportional to 3,877.12, 5,812.32 and 1,567.12 is: 2,349.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.12 : 5,812.32 = 1,567.12 : x
  2. Step 2: Convert to fraction form
    3,877.12/5,812.32 = 1,567.12/x
  3. Step 3: Cross multiply
    3,877.12x = 5,812.32 × 1,567.12
  4. Step 4: Simplify right side
    3,877.12x = 9,108,602.92
  5. Step 5: Solve for x
    x = 9,108,602.92/3,877.12
  6. Step 6: Final answer
    x = 2,349.32

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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.