Home / 3,390.05-4,677.55-1,954.33

Finding the Fourth Proportional to 3,390.05, 4,677.55 and 1,954.33

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Solution

The fourth proportional to 3,390.05, 4,677.55 and 1,954.33 is: 2,696.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.05 : 4,677.55 = 1,954.33 : x
  2. Step 2: Convert to fraction form
    3,390.05/4,677.55 = 1,954.33/x
  3. Step 3: Cross multiply
    3,390.05x = 4,677.55 × 1,954.33
  4. Step 4: Simplify right side
    3,390.05x = 9,141,459.71
  5. Step 5: Solve for x
    x = 9,141,459.71/3,390.05
  6. Step 6: Final answer
    x = 2,696.55

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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.