Home / 1,946.77-2,686.92-1,356.96

Finding the Fourth Proportional to 1,946.77, 2,686.92 and 1,356.96

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Solution

The fourth proportional to 1,946.77, 2,686.92 and 1,356.96 is: 1,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.77 : 2,686.92 = 1,356.96 : x
  2. Step 2: Convert to fraction form
    1,946.77/2,686.92 = 1,356.96/x
  3. Step 3: Cross multiply
    1,946.77x = 2,686.92 × 1,356.96
  4. Step 4: Simplify right side
    1,946.77x = 3,646,055.58
  5. Step 5: Solve for x
    x = 3,646,055.58/1,946.77
  6. Step 6: Final answer
    x = 1,872.88

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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.