Home / 7,631.79-10,533.14-5,239.81

Finding the Fourth Proportional to 7,631.79, 10,533.14 and 5,239.81

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Solution

The fourth proportional to 7,631.79, 10,533.14 and 5,239.81 is: 7,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.79 : 10,533.14 = 5,239.81 : x
  2. Step 2: Convert to fraction form
    7,631.79/10,533.14 = 5,239.81/x
  3. Step 3: Cross multiply
    7,631.79x = 10,533.14 × 5,239.81
  4. Step 4: Simplify right side
    7,631.79x = 55,191,599.64
  5. Step 5: Solve for x
    x = 55,191,599.64/7,631.79
  6. Step 6: Final answer
    x = 7,231.80

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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.