Home / 1,859.90-2,566.56-1,020.64

Finding the Fourth Proportional to 1,859.90, 2,566.56 and 1,020.64

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Solution

The fourth proportional to 1,859.90, 2,566.56 and 1,020.64 is: 1,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.90 : 2,566.56 = 1,020.64 : x
  2. Step 2: Convert to fraction form
    1,859.90/2,566.56 = 1,020.64/x
  3. Step 3: Cross multiply
    1,859.90x = 2,566.56 × 1,020.64
  4. Step 4: Simplify right side
    1,859.90x = 2,619,533.80
  5. Step 5: Solve for x
    x = 2,619,533.80/1,859.90
  6. Step 6: Final answer
    x = 1,408.43

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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.