Home / 2,107.24-3,159.95-1,620.63

Finding the Fourth Proportional to 2,107.24, 3,159.95 and 1,620.63

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Solution

The fourth proportional to 2,107.24, 3,159.95 and 1,620.63 is: 2,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.24 : 3,159.95 = 1,620.63 : x
  2. Step 2: Convert to fraction form
    2,107.24/3,159.95 = 1,620.63/x
  3. Step 3: Cross multiply
    2,107.24x = 3,159.95 × 1,620.63
  4. Step 4: Simplify right side
    2,107.24x = 5,121,101.67
  5. Step 5: Solve for x
    x = 5,121,101.67/2,107.24
  6. Step 6: Final answer
    x = 2,430.24

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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.