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Finding the Fourth Proportional to 1,360.83, 2,038.20 and 1,051.68

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Solution

The fourth proportional to 1,360.83, 2,038.20 and 1,051.68 is: 1,575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.83 : 2,038.20 = 1,051.68 : x
  2. Step 2: Convert to fraction form
    1,360.83/2,038.20 = 1,051.68/x
  3. Step 3: Cross multiply
    1,360.83x = 2,038.20 × 1,051.68
  4. Step 4: Simplify right side
    1,360.83x = 2,143,523.99
  5. Step 5: Solve for x
    x = 2,143,523.99/1,360.83
  6. Step 6: Final answer
    x = 1,575.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.