Home / 3,398.02-4,689.25-1,905.93

Finding the Fourth Proportional to 3,398.02, 4,689.25 and 1,905.93

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Solution

The fourth proportional to 3,398.02, 4,689.25 and 1,905.93 is: 2,630.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.02 : 4,689.25 = 1,905.93 : x
  2. Step 2: Convert to fraction form
    3,398.02/4,689.25 = 1,905.93/x
  3. Step 3: Cross multiply
    3,398.02x = 4,689.25 × 1,905.93
  4. Step 4: Simplify right side
    3,398.02x = 8,937,382.25
  5. Step 5: Solve for x
    x = 8,937,382.25/3,398.02
  6. Step 6: Final answer
    x = 2,630.17

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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.