Home / 1,148.21-1,584.65-650.99

Finding the Fourth Proportional to 1,148.21, 1,584.65 and 650.99

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Solution

The fourth proportional to 1,148.21, 1,584.65 and 650.99 is: 898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.21 : 1,584.65 = 650.99 : x
  2. Step 2: Convert to fraction form
    1,148.21/1,584.65 = 650.99/x
  3. Step 3: Cross multiply
    1,148.21x = 1,584.65 × 650.99
  4. Step 4: Simplify right side
    1,148.21x = 1,031,580.13
  5. Step 5: Solve for x
    x = 1,031,580.13/1,148.21
  6. Step 6: Final answer
    x = 898.42

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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.