Home / 1,276.84-1,905.56-1,244.04

Finding the Fourth Proportional to 1,276.84, 1,905.56 and 1,244.04

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Solution

The fourth proportional to 1,276.84, 1,905.56 and 1,244.04 is: 1,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276.84 : 1,905.56 = 1,244.04 : x
  2. Step 2: Convert to fraction form
    1,276.84/1,905.56 = 1,244.04/x
  3. Step 3: Cross multiply
    1,276.84x = 1,905.56 × 1,244.04
  4. Step 4: Simplify right side
    1,276.84x = 2,370,579.50
  5. Step 5: Solve for x
    x = 2,370,579.50/1,276.84
  6. Step 6: Final answer
    x = 1,856.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.