Home / 2,987.09-4,480.73-2,110.67

Finding the Fourth Proportional to 2,987.09, 4,480.73 and 2,110.67

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Solution

The fourth proportional to 2,987.09, 4,480.73 and 2,110.67 is: 3,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.09 : 4,480.73 = 2,110.67 : x
  2. Step 2: Convert to fraction form
    2,987.09/4,480.73 = 2,110.67/x
  3. Step 3: Cross multiply
    2,987.09x = 4,480.73 × 2,110.67
  4. Step 4: Simplify right side
    2,987.09x = 9,457,342.39
  5. Step 5: Solve for x
    x = 9,457,342.39/2,987.09
  6. Step 6: Final answer
    x = 3,166.07

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1.5x scale

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.