Home / 1,579.37-2,179.76-1,021.14

Finding the Fourth Proportional to 1,579.37, 2,179.76 and 1,021.14

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Solution

The fourth proportional to 1,579.37, 2,179.76 and 1,021.14 is: 1,409.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.37 : 2,179.76 = 1,021.14 : x
  2. Step 2: Convert to fraction form
    1,579.37/2,179.76 = 1,021.14/x
  3. Step 3: Cross multiply
    1,579.37x = 2,179.76 × 1,021.14
  4. Step 4: Simplify right side
    1,579.37x = 2,225,835.02
  5. Step 5: Solve for x
    x = 2,225,835.02/1,579.37
  6. Step 6: Final answer
    x = 1,409.32

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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.