Home / 2,750.90-4,127.49-1,518.20

Finding the Fourth Proportional to 2,750.90, 4,127.49 and 1,518.20

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Solution

The fourth proportional to 2,750.90, 4,127.49 and 1,518.20 is: 2,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.90 : 4,127.49 = 1,518.20 : x
  2. Step 2: Convert to fraction form
    2,750.90/4,127.49 = 1,518.20/x
  3. Step 3: Cross multiply
    2,750.90x = 4,127.49 × 1,518.20
  4. Step 4: Simplify right side
    2,750.90x = 6,266,355.32
  5. Step 5: Solve for x
    x = 6,266,355.32/2,750.90
  6. Step 6: Final answer
    x = 2,277.93

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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.