Home / 2,308.99-3,187.07-1,314.81

Finding the Fourth Proportional to 2,308.99, 3,187.07 and 1,314.81

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Solution

The fourth proportional to 2,308.99, 3,187.07 and 1,314.81 is: 1,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.99 : 3,187.07 = 1,314.81 : x
  2. Step 2: Convert to fraction form
    2,308.99/3,187.07 = 1,314.81/x
  3. Step 3: Cross multiply
    2,308.99x = 3,187.07 × 1,314.81
  4. Step 4: Simplify right side
    2,308.99x = 4,190,391.51
  5. Step 5: Solve for x
    x = 4,190,391.51/2,308.99
  6. Step 6: Final answer
    x = 1,814.82

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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.