Home / 1,578.86-2,351.45-1,477.60

Finding the Fourth Proportional to 1,578.86, 2,351.45 and 1,477.60

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Solution

The fourth proportional to 1,578.86, 2,351.45 and 1,477.60 is: 2,200.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.86 : 2,351.45 = 1,477.60 : x
  2. Step 2: Convert to fraction form
    1,578.86/2,351.45 = 1,477.60/x
  3. Step 3: Cross multiply
    1,578.86x = 2,351.45 × 1,477.60
  4. Step 4: Simplify right side
    1,578.86x = 3,474,502.52
  5. Step 5: Solve for x
    x = 3,474,502.52/1,578.86
  6. Step 6: Final answer
    x = 2,200.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.