Home / 1,534.08-2,118.78-1,012.44

Finding the Fourth Proportional to 1,534.08, 2,118.78 and 1,012.44

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Solution

The fourth proportional to 1,534.08, 2,118.78 and 1,012.44 is: 1,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.08 : 2,118.78 = 1,012.44 : x
  2. Step 2: Convert to fraction form
    1,534.08/2,118.78 = 1,012.44/x
  3. Step 3: Cross multiply
    1,534.08x = 2,118.78 × 1,012.44
  4. Step 4: Simplify right side
    1,534.08x = 2,145,137.62
  5. Step 5: Solve for x
    x = 2,145,137.62/1,534.08
  6. Step 6: Final answer
    x = 1,398.32

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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.