Home / 2,587.50-3,881.25-1,106.51

Finding the Fourth Proportional to 2,587.50, 3,881.25 and 1,106.51

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Solution

The fourth proportional to 2,587.50, 3,881.25 and 1,106.51 is: 1,659.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.50 : 3,881.25 = 1,106.51 : x
  2. Step 2: Convert to fraction form
    2,587.50/3,881.25 = 1,106.51/x
  3. Step 3: Cross multiply
    2,587.50x = 3,881.25 × 1,106.51
  4. Step 4: Simplify right side
    2,587.50x = 4,294,622.53
  5. Step 5: Solve for x
    x = 4,294,622.53/2,587.50
  6. Step 6: Final answer
    x = 1,659.76

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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.