Home / 2,855.90-4,276.56-2,530.28

Finding the Fourth Proportional to 2,855.90, 4,276.56 and 2,530.28

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Solution

The fourth proportional to 2,855.90, 4,276.56 and 2,530.28 is: 3,788.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.90 : 4,276.56 = 2,530.28 : x
  2. Step 2: Convert to fraction form
    2,855.90/4,276.56 = 2,530.28/x
  3. Step 3: Cross multiply
    2,855.90x = 4,276.56 × 2,530.28
  4. Step 4: Simplify right side
    2,855.90x = 10,820,894.24
  5. Step 5: Solve for x
    x = 10,820,894.24/2,855.90
  6. Step 6: Final answer
    x = 3,788.96

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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.