Home / 2,109.14-2,909.58-1,363.74

Finding the Fourth Proportional to 2,109.14, 2,909.58 and 1,363.74

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Solution

The fourth proportional to 2,109.14, 2,909.58 and 1,363.74 is: 1,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.14 : 2,909.58 = 1,363.74 : x
  2. Step 2: Convert to fraction form
    2,109.14/2,909.58 = 1,363.74/x
  3. Step 3: Cross multiply
    2,109.14x = 2,909.58 × 1,363.74
  4. Step 4: Simplify right side
    2,109.14x = 3,967,894.60
  5. Step 5: Solve for x
    x = 3,967,894.60/2,109.14
  6. Step 6: Final answer
    x = 1,881.29

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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.