Home / 3,877.32-5,816.04-1,280.28

Finding the Fourth Proportional to 3,877.32, 5,816.04 and 1,280.28

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Solution

The fourth proportional to 3,877.32, 5,816.04 and 1,280.28 is: 1,920.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.32 : 5,816.04 = 1,280.28 : x
  2. Step 2: Convert to fraction form
    3,877.32/5,816.04 = 1,280.28/x
  3. Step 3: Cross multiply
    3,877.32x = 5,816.04 × 1,280.28
  4. Step 4: Simplify right side
    3,877.32x = 7,446,159.69
  5. Step 5: Solve for x
    x = 7,446,159.69/3,877.32
  6. Step 6: Final answer
    x = 1,920.44

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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.