Home / 6,458.30-9,689.10-2,075.80

Finding the Fourth Proportional to 6,458.30, 9,689.10 and 2,075.80

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Solution

The fourth proportional to 6,458.30, 9,689.10 and 2,075.80 is: 3,114.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.30 : 9,689.10 = 2,075.80 : x
  2. Step 2: Convert to fraction form
    6,458.30/9,689.10 = 2,075.80/x
  3. Step 3: Cross multiply
    6,458.30x = 9,689.10 × 2,075.80
  4. Step 4: Simplify right side
    6,458.30x = 20,112,633.78
  5. Step 5: Solve for x
    x = 20,112,633.78/6,458.30
  6. Step 6: Final answer
    x = 3,114.23

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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.