Home / 2,039.40-2,814.30-1,340.28

Finding the Fourth Proportional to 2,039.40, 2,814.30 and 1,340.28

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Solution

The fourth proportional to 2,039.40, 2,814.30 and 1,340.28 is: 1,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.40 : 2,814.30 = 1,340.28 : x
  2. Step 2: Convert to fraction form
    2,039.40/2,814.30 = 1,340.28/x
  3. Step 3: Cross multiply
    2,039.40x = 2,814.30 × 1,340.28
  4. Step 4: Simplify right side
    2,039.40x = 3,771,950.00
  5. Step 5: Solve for x
    x = 3,771,950.00/2,039.40
  6. Step 6: Final answer
    x = 1,849.54

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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.