Home / 1,848.88-2,550.56-1,290.64

Finding the Fourth Proportional to 1,848.88, 2,550.56 and 1,290.64

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Solution

The fourth proportional to 1,848.88, 2,550.56 and 1,290.64 is: 1,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,848.88 : 2,550.56 = 1,290.64 : x
  2. Step 2: Convert to fraction form
    1,848.88/2,550.56 = 1,290.64/x
  3. Step 3: Cross multiply
    1,848.88x = 2,550.56 × 1,290.64
  4. Step 4: Simplify right side
    1,848.88x = 3,291,854.76
  5. Step 5: Solve for x
    x = 3,291,854.76/1,848.88
  6. Step 6: Final answer
    x = 1,780.46

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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.