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Finding the Fourth Proportional to 1,833.58, 2,530.38 and 1,135

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Solution

The fourth proportional to 1,833.58, 2,530.38 and 1,135 is: 1,566.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,833.58 : 2,530.38 = 1,135 : x
  2. Step 2: Convert to fraction form
    1,833.58/2,530.38 = 1,135/x
  3. Step 3: Cross multiply
    1,833.58x = 2,530.38 × 1,135
  4. Step 4: Simplify right side
    1,833.58x = 2,871,981.30
  5. Step 5: Solve for x
    x = 2,871,981.30/1,833.58
  6. Step 6: Final answer
    x = 1,566.32

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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.