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Finding the Fourth Proportional to 1,410.76, 2,104.37 and 1,235.80

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Solution

The fourth proportional to 1,410.76, 2,104.37 and 1,235.80 is: 1,843.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.76 : 2,104.37 = 1,235.80 : x
  2. Step 2: Convert to fraction form
    1,410.76/2,104.37 = 1,235.80/x
  3. Step 3: Cross multiply
    1,410.76x = 2,104.37 × 1,235.80
  4. Step 4: Simplify right side
    1,410.76x = 2,600,580.45
  5. Step 5: Solve for x
    x = 2,600,580.45/1,410.76
  6. Step 6: Final answer
    x = 1,843.39

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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.