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Finding the Fourth Proportional to 5,018.63, 7,527.88 and 1,555.88

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Solution

The fourth proportional to 5,018.63, 7,527.88 and 1,555.88 is: 2,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,018.63 : 7,527.88 = 1,555.88 : x
  2. Step 2: Convert to fraction form
    5,018.63/7,527.88 = 1,555.88/x
  3. Step 3: Cross multiply
    5,018.63x = 7,527.88 × 1,555.88
  4. Step 4: Simplify right side
    5,018.63x = 11,712,470.16
  5. Step 5: Solve for x
    x = 11,712,470.16/5,018.63
  6. Step 6: Final answer
    x = 2,333.80

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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.