Home / 3,480.12-4,802.74-1,908.20

Finding the Fourth Proportional to 3,480.12, 4,802.74 and 1,908.20

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Solution

The fourth proportional to 3,480.12, 4,802.74 and 1,908.20 is: 2,633.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.12 : 4,802.74 = 1,908.20 : x
  2. Step 2: Convert to fraction form
    3,480.12/4,802.74 = 1,908.20/x
  3. Step 3: Cross multiply
    3,480.12x = 4,802.74 × 1,908.20
  4. Step 4: Simplify right side
    3,480.12x = 9,164,588.47
  5. Step 5: Solve for x
    x = 9,164,588.47/3,480.12
  6. Step 6: Final answer
    x = 2,633.41

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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.