Home / 1,520.98-2,094.36-1,299.44

Finding the Fourth Proportional to 1,520.98, 2,094.36 and 1,299.44

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Solution

The fourth proportional to 1,520.98, 2,094.36 and 1,299.44 is: 1,789.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.98 : 2,094.36 = 1,299.44 : x
  2. Step 2: Convert to fraction form
    1,520.98/2,094.36 = 1,299.44/x
  3. Step 3: Cross multiply
    1,520.98x = 2,094.36 × 1,299.44
  4. Step 4: Simplify right side
    1,520.98x = 2,721,495.52
  5. Step 5: Solve for x
    x = 2,721,495.52/1,520.98
  6. Step 6: Final answer
    x = 1,789.31

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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.