Home / 2,846.76-3,928.47-1,587.90

Finding the Fourth Proportional to 2,846.76, 3,928.47 and 1,587.90

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Solution

The fourth proportional to 2,846.76, 3,928.47 and 1,587.90 is: 2,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,846.76 : 3,928.47 = 1,587.90 : x
  2. Step 2: Convert to fraction form
    2,846.76/3,928.47 = 1,587.90/x
  3. Step 3: Cross multiply
    2,846.76x = 3,928.47 × 1,587.90
  4. Step 4: Simplify right side
    2,846.76x = 6,238,017.51
  5. Step 5: Solve for x
    x = 6,238,017.51/2,846.76
  6. Step 6: Final answer
    x = 2,191.27

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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.