Home / 3,788.48-5,228.10-2,655.80

Finding the Fourth Proportional to 3,788.48, 5,228.10 and 2,655.80

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Solution

The fourth proportional to 3,788.48, 5,228.10 and 2,655.80 is: 3,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,788.48 : 5,228.10 = 2,655.80 : x
  2. Step 2: Convert to fraction form
    3,788.48/5,228.10 = 2,655.80/x
  3. Step 3: Cross multiply
    3,788.48x = 5,228.10 × 2,655.80
  4. Step 4: Simplify right side
    3,788.48x = 13,884,787.98
  5. Step 5: Solve for x
    x = 13,884,787.98/3,788.48
  6. Step 6: Final answer
    x = 3,665.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.