Home / 6,458.14-9,689.43-2,075.74

Finding the Fourth Proportional to 6,458.14, 9,689.43 and 2,075.74

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Solution

The fourth proportional to 6,458.14, 9,689.43 and 2,075.74 is: 3,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,458.14 : 9,689.43 = 2,075.74 : x
  2. Step 2: Convert to fraction form
    6,458.14/9,689.43 = 2,075.74/x
  3. Step 3: Cross multiply
    6,458.14x = 9,689.43 × 2,075.74
  4. Step 4: Simplify right side
    6,458.14x = 20,112,737.43
  5. Step 5: Solve for x
    x = 20,112,737.43/6,458.14
  6. Step 6: Final answer
    x = 3,114.32

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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.