Home / 2,804.35-3,868.88-1,685.35

Finding the Fourth Proportional to 2,804.35, 3,868.88 and 1,685.35

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Solution

The fourth proportional to 2,804.35, 3,868.88 and 1,685.35 is: 2,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.35 : 3,868.88 = 1,685.35 : x
  2. Step 2: Convert to fraction form
    2,804.35/3,868.88 = 1,685.35/x
  3. Step 3: Cross multiply
    2,804.35x = 3,868.88 × 1,685.35
  4. Step 4: Simplify right side
    2,804.35x = 6,520,408.48
  5. Step 5: Solve for x
    x = 6,520,408.48/2,804.35
  6. Step 6: Final answer
    x = 2,325.11

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1.5x scale

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.