Home / 2,031.76-2,803.44-1,285.84

Finding the Fourth Proportional to 2,031.76, 2,803.44 and 1,285.84

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Solution

The fourth proportional to 2,031.76, 2,803.44 and 1,285.84 is: 1,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.76 : 2,803.44 = 1,285.84 : x
  2. Step 2: Convert to fraction form
    2,031.76/2,803.44 = 1,285.84/x
  3. Step 3: Cross multiply
    2,031.76x = 2,803.44 × 1,285.84
  4. Step 4: Simplify right side
    2,031.76x = 3,604,775.29
  5. Step 5: Solve for x
    x = 3,604,775.29/2,031.76
  6. Step 6: Final answer
    x = 1,774.21

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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.