Home / 2,378.42-3,283.10-1,790.66

Finding the Fourth Proportional to 2,378.42, 3,283.10 and 1,790.66

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Solution

The fourth proportional to 2,378.42, 3,283.10 and 1,790.66 is: 2,471.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.42 : 3,283.10 = 1,790.66 : x
  2. Step 2: Convert to fraction form
    2,378.42/3,283.10 = 1,790.66/x
  3. Step 3: Cross multiply
    2,378.42x = 3,283.10 × 1,790.66
  4. Step 4: Simplify right side
    2,378.42x = 5,878,890.48
  5. Step 5: Solve for x
    x = 5,878,890.48/2,378.42
  6. Step 6: Final answer
    x = 2,471.77

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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.