Home / 2,480.00-3,416.76-1,918.53

Finding the Fourth Proportional to 2,480.00, 3,416.76 and 1,918.53

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Solution

The fourth proportional to 2,480.00, 3,416.76 and 1,918.53 is: 2,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.00 : 3,416.76 = 1,918.53 : x
  2. Step 2: Convert to fraction form
    2,480.00/3,416.76 = 1,918.53/x
  3. Step 3: Cross multiply
    2,480.00x = 3,416.76 × 1,918.53
  4. Step 4: Simplify right side
    2,480.00x = 6,555,156.56
  5. Step 5: Solve for x
    x = 6,555,156.56/2,480.00
  6. Step 6: Final answer
    x = 2,643.21

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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.