Home / 2,133.12-2,940.48-1,666.56

Finding the Fourth Proportional to 2,133.12, 2,940.48 and 1,666.56

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Solution

The fourth proportional to 2,133.12, 2,940.48 and 1,666.56 is: 2,297.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133.12 : 2,940.48 = 1,666.56 : x
  2. Step 2: Convert to fraction form
    2,133.12/2,940.48 = 1,666.56/x
  3. Step 3: Cross multiply
    2,133.12x = 2,940.48 × 1,666.56
  4. Step 4: Simplify right side
    2,133.12x = 4,900,486.35
  5. Step 5: Solve for x
    x = 4,900,486.35/2,133.12
  6. Step 6: Final answer
    x = 2,297.33

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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.