Home / 3,608.74-4,975.59-2,981.80

Finding the Fourth Proportional to 3,608.74, 4,975.59 and 2,981.80

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Solution

The fourth proportional to 3,608.74, 4,975.59 and 2,981.80 is: 4,111.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,608.74 : 4,975.59 = 2,981.80 : x
  2. Step 2: Convert to fraction form
    3,608.74/4,975.59 = 2,981.80/x
  3. Step 3: Cross multiply
    3,608.74x = 4,975.59 × 2,981.80
  4. Step 4: Simplify right side
    3,608.74x = 14,836,214.26
  5. Step 5: Solve for x
    x = 14,836,214.26/3,608.74
  6. Step 6: Final answer
    x = 4,111.19

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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.