Home / 3,490.14-4,816.21-1,917.93

Finding the Fourth Proportional to 3,490.14, 4,816.21 and 1,917.93

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Solution

The fourth proportional to 3,490.14, 4,816.21 and 1,917.93 is: 2,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.14 : 4,816.21 = 1,917.93 : x
  2. Step 2: Convert to fraction form
    3,490.14/4,816.21 = 1,917.93/x
  3. Step 3: Cross multiply
    3,490.14x = 4,816.21 × 1,917.93
  4. Step 4: Simplify right side
    3,490.14x = 9,237,153.65
  5. Step 5: Solve for x
    x = 9,237,153.65/3,490.14
  6. Step 6: Final answer
    x = 2,646.64

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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.