Home / 1,790.77-2,466.15-1,612.21

Finding the Fourth Proportional to 1,790.77, 2,466.15 and 1,612.21

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Solution

The fourth proportional to 1,790.77, 2,466.15 and 1,612.21 is: 2,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.77 : 2,466.15 = 1,612.21 : x
  2. Step 2: Convert to fraction form
    1,790.77/2,466.15 = 1,612.21/x
  3. Step 3: Cross multiply
    1,790.77x = 2,466.15 × 1,612.21
  4. Step 4: Simplify right side
    1,790.77x = 3,975,951.69
  5. Step 5: Solve for x
    x = 3,975,951.69/1,790.77
  6. Step 6: Final answer
    x = 2,220.25

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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.