Home / 1,946.63-2,686.41-1,107.46

Finding the Fourth Proportional to 1,946.63, 2,686.41 and 1,107.46

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Solution

The fourth proportional to 1,946.63, 2,686.41 and 1,107.46 is: 1,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.63 : 2,686.41 = 1,107.46 : x
  2. Step 2: Convert to fraction form
    1,946.63/2,686.41 = 1,107.46/x
  3. Step 3: Cross multiply
    1,946.63x = 2,686.41 × 1,107.46
  4. Step 4: Simplify right side
    1,946.63x = 2,975,078.19
  5. Step 5: Solve for x
    x = 2,975,078.19/1,946.63
  6. Step 6: Final answer
    x = 1,528.32

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Double scale
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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.