Home / 3,480.26-4,802.76-1,988.44

Finding the Fourth Proportional to 3,480.26, 4,802.76 and 1,988.44

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Solution

The fourth proportional to 3,480.26, 4,802.76 and 1,988.44 is: 2,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.26 : 4,802.76 = 1,988.44 : x
  2. Step 2: Convert to fraction form
    3,480.26/4,802.76 = 1,988.44/x
  3. Step 3: Cross multiply
    3,480.26x = 4,802.76 × 1,988.44
  4. Step 4: Simplify right side
    3,480.26x = 9,549,988.09
  5. Step 5: Solve for x
    x = 9,549,988.09/3,480.26
  6. Step 6: Final answer
    x = 2,744.05

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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.