Home / 3,398.87-4,690.69-1,886.51

Finding the Fourth Proportional to 3,398.87, 4,690.69 and 1,886.51

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Solution

The fourth proportional to 3,398.87, 4,690.69 and 1,886.51 is: 2,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.87 : 4,690.69 = 1,886.51 : x
  2. Step 2: Convert to fraction form
    3,398.87/4,690.69 = 1,886.51/x
  3. Step 3: Cross multiply
    3,398.87x = 4,690.69 × 1,886.51
  4. Step 4: Simplify right side
    3,398.87x = 8,849,040.60
  5. Step 5: Solve for x
    x = 8,849,040.60/3,398.87
  6. Step 6: Final answer
    x = 2,603.52

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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.