Home / 3,490.12-4,816.28-1,918.18

Finding the Fourth Proportional to 3,490.12, 4,816.28 and 1,918.18

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Solution

The fourth proportional to 3,490.12, 4,816.28 and 1,918.18 is: 2,647.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.12 : 4,816.28 = 1,918.18 : x
  2. Step 2: Convert to fraction form
    3,490.12/4,816.28 = 1,918.18/x
  3. Step 3: Cross multiply
    3,490.12x = 4,816.28 × 1,918.18
  4. Step 4: Simplify right side
    3,490.12x = 9,238,458.30
  5. Step 5: Solve for x
    x = 9,238,458.30/3,490.12
  6. Step 6: Final answer
    x = 2,647.04

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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.