Home / 5,605.02-8,406.72-1,907.40

Finding the Fourth Proportional to 5,605.02, 8,406.72 and 1,907.40

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Solution

The fourth proportional to 5,605.02, 8,406.72 and 1,907.40 is: 2,860.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.02 : 8,406.72 = 1,907.40 : x
  2. Step 2: Convert to fraction form
    5,605.02/8,406.72 = 1,907.40/x
  3. Step 3: Cross multiply
    5,605.02x = 8,406.72 × 1,907.40
  4. Step 4: Simplify right side
    5,605.02x = 16,034,977.73
  5. Step 5: Solve for x
    x = 16,034,977.73/5,605.02
  6. Step 6: Final answer
    x = 2,860.82

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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.