Home / 1,528.21-2,292.72-650.76

Finding the Fourth Proportional to 1,528.21, 2,292.72 and 650.76

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Solution

The fourth proportional to 1,528.21, 2,292.72 and 650.76 is: 976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.21 : 2,292.72 = 650.76 : x
  2. Step 2: Convert to fraction form
    1,528.21/2,292.72 = 650.76/x
  3. Step 3: Cross multiply
    1,528.21x = 2,292.72 × 650.76
  4. Step 4: Simplify right side
    1,528.21x = 1,492,010.47
  5. Step 5: Solve for x
    x = 1,492,010.47/1,528.21
  6. Step 6: Final answer
    x = 976.31

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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.