Home / 3,368.85-4,648.75-2,109.84

Finding the Fourth Proportional to 3,368.85, 4,648.75 and 2,109.84

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Solution

The fourth proportional to 3,368.85, 4,648.75 and 2,109.84 is: 2,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.85 : 4,648.75 = 2,109.84 : x
  2. Step 2: Convert to fraction form
    3,368.85/4,648.75 = 2,109.84/x
  3. Step 3: Cross multiply
    3,368.85x = 4,648.75 × 2,109.84
  4. Step 4: Simplify right side
    3,368.85x = 9,808,118.70
  5. Step 5: Solve for x
    x = 9,808,118.70/3,368.85
  6. Step 6: Final answer
    x = 2,911.41

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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.