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Finding the Fourth Proportional to 1,818.64, 2,728.50 and 586.02

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Solution

The fourth proportional to 1,818.64, 2,728.50 and 586.02 is: 879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.64 : 2,728.50 = 586.02 : x
  2. Step 2: Convert to fraction form
    1,818.64/2,728.50 = 586.02/x
  3. Step 3: Cross multiply
    1,818.64x = 2,728.50 × 586.02
  4. Step 4: Simplify right side
    1,818.64x = 1,598,955.57
  5. Step 5: Solve for x
    x = 1,598,955.57/1,818.64
  6. Step 6: Final answer
    x = 879.20

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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.