Home / 1,783.21-2,461.08-1,286.52

Finding the Fourth Proportional to 1,783.21, 2,461.08 and 1,286.52

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Solution

The fourth proportional to 1,783.21, 2,461.08 and 1,286.52 is: 1,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,783.21 : 2,461.08 = 1,286.52 : x
  2. Step 2: Convert to fraction form
    1,783.21/2,461.08 = 1,286.52/x
  3. Step 3: Cross multiply
    1,783.21x = 2,461.08 × 1,286.52
  4. Step 4: Simplify right side
    1,783.21x = 3,166,228.64
  5. Step 5: Solve for x
    x = 3,166,228.64/1,783.21
  6. Step 6: Final answer
    x = 1,775.58

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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.