Home / 6,458.20-9,687.66-2,075.80

Finding the Fourth Proportional to 6,458.20, 9,687.66 and 2,075.80

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Solution

The fourth proportional to 6,458.20, 9,687.66 and 2,075.80 is: 3,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.20 : 9,687.66 = 2,075.80 : x
  2. Step 2: Convert to fraction form
    6,458.20/9,687.66 = 2,075.80/x
  3. Step 3: Cross multiply
    6,458.20x = 9,687.66 × 2,075.80
  4. Step 4: Simplify right side
    6,458.20x = 20,109,644.63
  5. Step 5: Solve for x
    x = 20,109,644.63/6,458.20
  6. Step 6: Final answer
    x = 3,113.82

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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.