Home / 3,398.70-4,690.14-1,886.26

Finding the Fourth Proportional to 3,398.70, 4,690.14 and 1,886.26

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Solution

The fourth proportional to 3,398.70, 4,690.14 and 1,886.26 is: 2,603.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.70 : 4,690.14 = 1,886.26 : x
  2. Step 2: Convert to fraction form
    3,398.70/4,690.14 = 1,886.26/x
  3. Step 3: Cross multiply
    3,398.70x = 4,690.14 × 1,886.26
  4. Step 4: Simplify right side
    3,398.70x = 8,846,823.48
  5. Step 5: Solve for x
    x = 8,846,823.48/3,398.70
  6. Step 6: Final answer
    x = 2,603.00

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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.