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Finding the Fourth Proportional to 1,818.77, 2,509.90 and 1,032.82

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Solution

The fourth proportional to 1,818.77, 2,509.90 and 1,032.82 is: 1,425.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.77 : 2,509.90 = 1,032.82 : x
  2. Step 2: Convert to fraction form
    1,818.77/2,509.90 = 1,032.82/x
  3. Step 3: Cross multiply
    1,818.77x = 2,509.90 × 1,032.82
  4. Step 4: Simplify right side
    1,818.77x = 2,592,271.87
  5. Step 5: Solve for x
    x = 2,592,271.87/1,818.77
  6. Step 6: Final answer
    x = 1,425.29

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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.