Home / 2,312.80-3,190.26-1,814.68

Finding the Fourth Proportional to 2,312.80, 3,190.26 and 1,814.68

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Solution

The fourth proportional to 2,312.80, 3,190.26 and 1,814.68 is: 2,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,312.80 : 3,190.26 = 1,814.68 : x
  2. Step 2: Convert to fraction form
    2,312.80/3,190.26 = 1,814.68/x
  3. Step 3: Cross multiply
    2,312.80x = 3,190.26 × 1,814.68
  4. Step 4: Simplify right side
    2,312.80x = 5,789,301.02
  5. Step 5: Solve for x
    x = 5,789,301.02/2,312.80
  6. Step 6: Final answer
    x = 2,503.16

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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.