Home / 1,946.83-2,689.56-1,276.23

Finding the Fourth Proportional to 1,946.83, 2,689.56 and 1,276.23

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Solution

The fourth proportional to 1,946.83, 2,689.56 and 1,276.23 is: 1,763.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.83 : 2,689.56 = 1,276.23 : x
  2. Step 2: Convert to fraction form
    1,946.83/2,689.56 = 1,276.23/x
  3. Step 3: Cross multiply
    1,946.83x = 2,689.56 × 1,276.23
  4. Step 4: Simplify right side
    1,946.83x = 3,432,497.16
  5. Step 5: Solve for x
    x = 3,432,497.16/1,946.83
  6. Step 6: Final answer
    x = 1,763.12

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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.