Home / 4,455.80-6,686.90-1,860.60

Finding the Fourth Proportional to 4,455.80, 6,686.90 and 1,860.60

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Solution

The fourth proportional to 4,455.80, 6,686.90 and 1,860.60 is: 2,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,455.80 : 6,686.90 = 1,860.60 : x
  2. Step 2: Convert to fraction form
    4,455.80/6,686.90 = 1,860.60/x
  3. Step 3: Cross multiply
    4,455.80x = 6,686.90 × 1,860.60
  4. Step 4: Simplify right side
    4,455.80x = 12,441,646.14
  5. Step 5: Solve for x
    x = 12,441,646.14/4,455.80
  6. Step 6: Final answer
    x = 2,792.24

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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.