Home / 2,814.40-3,885.93-1,820.26

Finding the Fourth Proportional to 2,814.40, 3,885.93 and 1,820.26

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Solution

The fourth proportional to 2,814.40, 3,885.93 and 1,820.26 is: 2,513.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.40 : 3,885.93 = 1,820.26 : x
  2. Step 2: Convert to fraction form
    2,814.40/3,885.93 = 1,820.26/x
  3. Step 3: Cross multiply
    2,814.40x = 3,885.93 × 1,820.26
  4. Step 4: Simplify right side
    2,814.40x = 7,073,402.94
  5. Step 5: Solve for x
    x = 7,073,402.94/2,814.40
  6. Step 6: Final answer
    x = 2,513.29

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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.