Home / 1,787.36-2,686.50-1,749.08

Finding the Fourth Proportional to 1,787.36, 2,686.50 and 1,749.08

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Solution

The fourth proportional to 1,787.36, 2,686.50 and 1,749.08 is: 2,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787.36 : 2,686.50 = 1,749.08 : x
  2. Step 2: Convert to fraction form
    1,787.36/2,686.50 = 1,749.08/x
  3. Step 3: Cross multiply
    1,787.36x = 2,686.50 × 1,749.08
  4. Step 4: Simplify right side
    1,787.36x = 4,698,889.99
  5. Step 5: Solve for x
    x = 4,698,889.99/1,787.36
  6. Step 6: Final answer
    x = 2,628.96

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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.