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Finding the Fourth Proportional to 1,353.63, 1,856.77 and 1,341.93

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Solution

The fourth proportional to 1,353.63, 1,856.77 and 1,341.93 is: 1,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353.63 : 1,856.77 = 1,341.93 : x
  2. Step 2: Convert to fraction form
    1,353.63/1,856.77 = 1,341.93/x
  3. Step 3: Cross multiply
    1,353.63x = 1,856.77 × 1,341.93
  4. Step 4: Simplify right side
    1,353.63x = 2,491,649.44
  5. Step 5: Solve for x
    x = 2,491,649.44/1,353.63
  6. Step 6: Final answer
    x = 1,840.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.