Home / 3,490.10-4,816.35-1,918.29

Finding the Fourth Proportional to 3,490.10, 4,816.35 and 1,918.29

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Solution

The fourth proportional to 3,490.10, 4,816.35 and 1,918.29 is: 2,647.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.10 : 4,816.35 = 1,918.29 : x
  2. Step 2: Convert to fraction form
    3,490.10/4,816.35 = 1,918.29/x
  3. Step 3: Cross multiply
    3,490.10x = 4,816.35 × 1,918.29
  4. Step 4: Simplify right side
    3,490.10x = 9,239,177.70
  5. Step 5: Solve for x
    x = 9,239,177.70/3,490.10
  6. Step 6: Final answer
    x = 2,647.25

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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.