Home / 2,026.20-3,037.38-638.57

Finding the Fourth Proportional to 2,026.20, 3,037.38 and 638.57

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Solution

The fourth proportional to 2,026.20, 3,037.38 and 638.57 is: 957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,026.20 : 3,037.38 = 638.57 : x
  2. Step 2: Convert to fraction form
    2,026.20/3,037.38 = 638.57/x
  3. Step 3: Cross multiply
    2,026.20x = 3,037.38 × 638.57
  4. Step 4: Simplify right side
    2,026.20x = 1,939,579.75
  5. Step 5: Solve for x
    x = 1,939,579.75/2,026.20
  6. Step 6: Final answer
    x = 957.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.