Home / 2,686.02-4,035.21-1,907.91

Finding the Fourth Proportional to 2,686.02, 4,035.21 and 1,907.91

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Solution

The fourth proportional to 2,686.02, 4,035.21 and 1,907.91 is: 2,866.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.02 : 4,035.21 = 1,907.91 : x
  2. Step 2: Convert to fraction form
    2,686.02/4,035.21 = 1,907.91/x
  3. Step 3: Cross multiply
    2,686.02x = 4,035.21 × 1,907.91
  4. Step 4: Simplify right side
    2,686.02x = 7,698,825.49
  5. Step 5: Solve for x
    x = 7,698,825.49/2,686.02
  6. Step 6: Final answer
    x = 2,866.26

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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.