Home / 5,087.51-7,631.46-1,577.88

Finding the Fourth Proportional to 5,087.51, 7,631.46 and 1,577.88

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Solution

The fourth proportional to 5,087.51, 7,631.46 and 1,577.88 is: 2,366.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.51 : 7,631.46 = 1,577.88 : x
  2. Step 2: Convert to fraction form
    5,087.51/7,631.46 = 1,577.88/x
  3. Step 3: Cross multiply
    5,087.51x = 7,631.46 × 1,577.88
  4. Step 4: Simplify right side
    5,087.51x = 12,041,528.10
  5. Step 5: Solve for x
    x = 12,041,528.10/5,087.51
  6. Step 6: Final answer
    x = 2,366.88

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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.