Home / 3,398.39-4,688.38-2,071.95

Finding the Fourth Proportional to 3,398.39, 4,688.38 and 2,071.95

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Solution

The fourth proportional to 3,398.39, 4,688.38 and 2,071.95 is: 2,858.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.39 : 4,688.38 = 2,071.95 : x
  2. Step 2: Convert to fraction form
    3,398.39/4,688.38 = 2,071.95/x
  3. Step 3: Cross multiply
    3,398.39x = 4,688.38 × 2,071.95
  4. Step 4: Simplify right side
    3,398.39x = 9,714,113.51
  5. Step 5: Solve for x
    x = 9,714,113.51/3,398.39
  6. Step 6: Final answer
    x = 2,858.44

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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.