Home / 4,278.49-5,881.63-3,678.77

Finding the Fourth Proportional to 4,278.49, 5,881.63 and 3,678.77

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Solution

The fourth proportional to 4,278.49, 5,881.63 and 3,678.77 is: 5,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.49 : 5,881.63 = 3,678.77 : x
  2. Step 2: Convert to fraction form
    4,278.49/5,881.63 = 3,678.77/x
  3. Step 3: Cross multiply
    4,278.49x = 5,881.63 × 3,678.77
  4. Step 4: Simplify right side
    4,278.49x = 21,637,169.50
  5. Step 5: Solve for x
    x = 21,637,169.50/4,278.49
  6. Step 6: Final answer
    x = 5,057.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.