Home / 3,398.84-4,690.40-1,886.51

Finding the Fourth Proportional to 3,398.84, 4,690.40 and 1,886.51

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Solution

The fourth proportional to 3,398.84, 4,690.40 and 1,886.51 is: 2,603.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.84 : 4,690.40 = 1,886.51 : x
  2. Step 2: Convert to fraction form
    3,398.84/4,690.40 = 1,886.51/x
  3. Step 3: Cross multiply
    3,398.84x = 4,690.40 × 1,886.51
  4. Step 4: Simplify right side
    3,398.84x = 8,848,453.62
  5. Step 5: Solve for x
    x = 8,848,453.62/3,398.84
  6. Step 6: Final answer
    x = 2,603.38

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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.