Home / 1,528.44-2,110-1,031.72

Finding the Fourth Proportional to 1,528.44, 2,110 and 1,031.72

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Solution

The fourth proportional to 1,528.44, 2,110 and 1,031.72 is: 1,424.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.44 : 2,110 = 1,031.72 : x
  2. Step 2: Convert to fraction form
    1,528.44/2,110 = 1,031.72/x
  3. Step 3: Cross multiply
    1,528.44x = 2,110 × 1,031.72
  4. Step 4: Simplify right side
    1,528.44x = 2,176,929.20
  5. Step 5: Solve for x
    x = 2,176,929.20/1,528.44
  6. Step 6: Final answer
    x = 1,424.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.