Home / 2,477.80-3,415.62-1,544.68

Finding the Fourth Proportional to 2,477.80, 3,415.62 and 1,544.68

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Solution

The fourth proportional to 2,477.80, 3,415.62 and 1,544.68 is: 2,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477.80 : 3,415.62 = 1,544.68 : x
  2. Step 2: Convert to fraction form
    2,477.80/3,415.62 = 1,544.68/x
  3. Step 3: Cross multiply
    2,477.80x = 3,415.62 × 1,544.68
  4. Step 4: Simplify right side
    2,477.80x = 5,276,039.90
  5. Step 5: Solve for x
    x = 5,276,039.90/2,477.80
  6. Step 6: Final answer
    x = 2,129.32

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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.