Home / 1,365.38-2,048.07-339.38

Finding the Fourth Proportional to 1,365.38, 2,048.07 and 339.38

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Solution

The fourth proportional to 1,365.38, 2,048.07 and 339.38 is: 509.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365.38 : 2,048.07 = 339.38 : x
  2. Step 2: Convert to fraction form
    1,365.38/2,048.07 = 339.38/x
  3. Step 3: Cross multiply
    1,365.38x = 2,048.07 × 339.38
  4. Step 4: Simplify right side
    1,365.38x = 695,074.00
  5. Step 5: Solve for x
    x = 695,074.00/1,365.38
  6. Step 6: Final answer
    x = 509.07

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1.5x scale

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.