Home / 1,873.19-2,584.80-1,087.40

Finding the Fourth Proportional to 1,873.19, 2,584.80 and 1,087.40

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Solution

The fourth proportional to 1,873.19, 2,584.80 and 1,087.40 is: 1,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.19 : 2,584.80 = 1,087.40 : x
  2. Step 2: Convert to fraction form
    1,873.19/2,584.80 = 1,087.40/x
  3. Step 3: Cross multiply
    1,873.19x = 2,584.80 × 1,087.40
  4. Step 4: Simplify right side
    1,873.19x = 2,810,698.60
  5. Step 5: Solve for x
    x = 2,810,698.60/1,873.19
  6. Step 6: Final answer
    x = 1,500.49

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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.