Home / 2,776.30-4,166.10-1,477.78

Finding the Fourth Proportional to 2,776.30, 4,166.10 and 1,477.78

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Solution

The fourth proportional to 2,776.30, 4,166.10 and 1,477.78 is: 2,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.30 : 4,166.10 = 1,477.78 : x
  2. Step 2: Convert to fraction form
    2,776.30/4,166.10 = 1,477.78/x
  3. Step 3: Cross multiply
    2,776.30x = 4,166.10 × 1,477.78
  4. Step 4: Simplify right side
    2,776.30x = 6,156,579.26
  5. Step 5: Solve for x
    x = 6,156,579.26/2,776.30
  6. Step 6: Final answer
    x = 2,217.55

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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.