Home / 2,048.40-3,066.54-1,315.80

Finding the Fourth Proportional to 2,048.40, 3,066.54 and 1,315.80

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Solution

The fourth proportional to 2,048.40, 3,066.54 and 1,315.80 is: 1,969.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,048.40 : 3,066.54 = 1,315.80 : x
  2. Step 2: Convert to fraction form
    2,048.40/3,066.54 = 1,315.80/x
  3. Step 3: Cross multiply
    2,048.40x = 3,066.54 × 1,315.80
  4. Step 4: Simplify right side
    2,048.40x = 4,034,953.33
  5. Step 5: Solve for x
    x = 4,034,953.33/2,048.40
  6. Step 6: Final answer
    x = 1,969.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.