Home / 4,677.80-6,455.20-2,788.41

Finding the Fourth Proportional to 4,677.80, 6,455.20 and 2,788.41

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Solution

The fourth proportional to 4,677.80, 6,455.20 and 2,788.41 is: 3,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,677.80 : 6,455.20 = 2,788.41 : x
  2. Step 2: Convert to fraction form
    4,677.80/6,455.20 = 2,788.41/x
  3. Step 3: Cross multiply
    4,677.80x = 6,455.20 × 2,788.41
  4. Step 4: Simplify right side
    4,677.80x = 17,999,718.28
  5. Step 5: Solve for x
    x = 17,999,718.28/4,677.80
  6. Step 6: Final answer
    x = 3,847.90

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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.