Home / 2,157.07-2,976.25-1,566.58

Finding the Fourth Proportional to 2,157.07, 2,976.25 and 1,566.58

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Solution

The fourth proportional to 2,157.07, 2,976.25 and 1,566.58 is: 2,161.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.07 : 2,976.25 = 1,566.58 : x
  2. Step 2: Convert to fraction form
    2,157.07/2,976.25 = 1,566.58/x
  3. Step 3: Cross multiply
    2,157.07x = 2,976.25 × 1,566.58
  4. Step 4: Simplify right side
    2,157.07x = 4,662,533.73
  5. Step 5: Solve for x
    x = 4,662,533.73/2,157.07
  6. Step 6: Final answer
    x = 2,161.51

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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.