Home / 1,578.39-2,370.56-1,509.27

Finding the Fourth Proportional to 1,578.39, 2,370.56 and 1,509.27

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Solution

The fourth proportional to 1,578.39, 2,370.56 and 1,509.27 is: 2,266.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.39 : 2,370.56 = 1,509.27 : x
  2. Step 2: Convert to fraction form
    1,578.39/2,370.56 = 1,509.27/x
  3. Step 3: Cross multiply
    1,578.39x = 2,370.56 × 1,509.27
  4. Step 4: Simplify right side
    1,578.39x = 3,577,807.54
  5. Step 5: Solve for x
    x = 3,577,807.54/1,578.39
  6. Step 6: Final answer
    x = 2,266.74

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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.