Home / 3,480.17-4,802.96-1,988.19

Finding the Fourth Proportional to 3,480.17, 4,802.96 and 1,988.19

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Solution

The fourth proportional to 3,480.17, 4,802.96 and 1,988.19 is: 2,743.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.17 : 4,802.96 = 1,988.19 : x
  2. Step 2: Convert to fraction form
    3,480.17/4,802.96 = 1,988.19/x
  3. Step 3: Cross multiply
    3,480.17x = 4,802.96 × 1,988.19
  4. Step 4: Simplify right side
    3,480.17x = 9,549,202.01
  5. Step 5: Solve for x
    x = 9,549,202.01/3,480.17
  6. Step 6: Final answer
    x = 2,743.89

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Double scale
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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.