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Finding the Fourth Proportional to 1,775.86, 2,451 and 1,113.28

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Solution

The fourth proportional to 1,775.86, 2,451 and 1,113.28 is: 1,536.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.86 : 2,451 = 1,113.28 : x
  2. Step 2: Convert to fraction form
    1,775.86/2,451 = 1,113.28/x
  3. Step 3: Cross multiply
    1,775.86x = 2,451 × 1,113.28
  4. Step 4: Simplify right side
    1,775.86x = 2,728,649.28
  5. Step 5: Solve for x
    x = 2,728,649.28/1,775.86
  6. Step 6: Final answer
    x = 1,536.52

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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.