Home / 2,620.09-3,614.14-1,557.48

Finding the Fourth Proportional to 2,620.09, 3,614.14 and 1,557.48

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Solution

The fourth proportional to 2,620.09, 3,614.14 and 1,557.48 is: 2,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.09 : 3,614.14 = 1,557.48 : x
  2. Step 2: Convert to fraction form
    2,620.09/3,614.14 = 1,557.48/x
  3. Step 3: Cross multiply
    2,620.09x = 3,614.14 × 1,557.48
  4. Step 4: Simplify right side
    2,620.09x = 5,628,950.77
  5. Step 5: Solve for x
    x = 5,628,950.77/2,620.09
  6. Step 6: Final answer
    x = 2,148.38

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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.