Home / 1,511.66-2,086.18-1,137.98

Finding the Fourth Proportional to 1,511.66, 2,086.18 and 1,137.98

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Solution

The fourth proportional to 1,511.66, 2,086.18 and 1,137.98 is: 1,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511.66 : 2,086.18 = 1,137.98 : x
  2. Step 2: Convert to fraction form
    1,511.66/2,086.18 = 1,137.98/x
  3. Step 3: Cross multiply
    1,511.66x = 2,086.18 × 1,137.98
  4. Step 4: Simplify right side
    1,511.66x = 2,374,031.12
  5. Step 5: Solve for x
    x = 2,374,031.12/1,511.66
  6. Step 6: Final answer
    x = 1,570.48

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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.