Home / 1,894.20-2,612.43-1,681.66

Finding the Fourth Proportional to 1,894.20, 2,612.43 and 1,681.66

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Solution

The fourth proportional to 1,894.20, 2,612.43 and 1,681.66 is: 2,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,894.20 : 2,612.43 = 1,681.66 : x
  2. Step 2: Convert to fraction form
    1,894.20/2,612.43 = 1,681.66/x
  3. Step 3: Cross multiply
    1,894.20x = 2,612.43 × 1,681.66
  4. Step 4: Simplify right side
    1,894.20x = 4,393,219.03
  5. Step 5: Solve for x
    x = 4,393,219.03/1,894.20
  6. Step 6: Final answer
    x = 2,319.30

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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.