Home / 2,669.28-3,683.16-1,490.19

Finding the Fourth Proportional to 2,669.28, 3,683.16 and 1,490.19

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Solution

The fourth proportional to 2,669.28, 3,683.16 and 1,490.19 is: 2,056.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,669.28 : 3,683.16 = 1,490.19 : x
  2. Step 2: Convert to fraction form
    2,669.28/3,683.16 = 1,490.19/x
  3. Step 3: Cross multiply
    2,669.28x = 3,683.16 × 1,490.19
  4. Step 4: Simplify right side
    2,669.28x = 5,488,608.20
  5. Step 5: Solve for x
    x = 5,488,608.20/2,669.28
  6. Step 6: Final answer
    x = 2,056.21

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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.