Home / 2,110.12-2,911.55-1,313.69

Finding the Fourth Proportional to 2,110.12, 2,911.55 and 1,313.69

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Solution

The fourth proportional to 2,110.12, 2,911.55 and 1,313.69 is: 1,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.12 : 2,911.55 = 1,313.69 : x
  2. Step 2: Convert to fraction form
    2,110.12/2,911.55 = 1,313.69/x
  3. Step 3: Cross multiply
    2,110.12x = 2,911.55 × 1,313.69
  4. Step 4: Simplify right side
    2,110.12x = 3,824,852.99
  5. Step 5: Solve for x
    x = 3,824,852.99/2,110.12
  6. Step 6: Final answer
    x = 1,812.63

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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.