Home / 4,515.48-6,776.10-1,918.42

Finding the Fourth Proportional to 4,515.48, 6,776.10 and 1,918.42

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Solution

The fourth proportional to 4,515.48, 6,776.10 and 1,918.42 is: 2,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,515.48 : 6,776.10 = 1,918.42 : x
  2. Step 2: Convert to fraction form
    4,515.48/6,776.10 = 1,918.42/x
  3. Step 3: Cross multiply
    4,515.48x = 6,776.10 × 1,918.42
  4. Step 4: Simplify right side
    4,515.48x = 12,999,388.82
  5. Step 5: Solve for x
    x = 12,999,388.82/4,515.48
  6. Step 6: Final answer
    x = 2,878.85

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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.