Home / 1,782.63-2,670.48-1,087.29

Finding the Fourth Proportional to 1,782.63, 2,670.48 and 1,087.29

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Solution

The fourth proportional to 1,782.63, 2,670.48 and 1,087.29 is: 1,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782.63 : 2,670.48 = 1,087.29 : x
  2. Step 2: Convert to fraction form
    1,782.63/2,670.48 = 1,087.29/x
  3. Step 3: Cross multiply
    1,782.63x = 2,670.48 × 1,087.29
  4. Step 4: Simplify right side
    1,782.63x = 2,903,586.20
  5. Step 5: Solve for x
    x = 2,903,586.20/1,782.63
  6. Step 6: Final answer
    x = 1,628.82

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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.