Home / 2,784.06-4,178.70-1,860.30

Finding the Fourth Proportional to 2,784.06, 4,178.70 and 1,860.30

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Solution

The fourth proportional to 2,784.06, 4,178.70 and 1,860.30 is: 2,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.06 : 4,178.70 = 1,860.30 : x
  2. Step 2: Convert to fraction form
    2,784.06/4,178.70 = 1,860.30/x
  3. Step 3: Cross multiply
    2,784.06x = 4,178.70 × 1,860.30
  4. Step 4: Simplify right side
    2,784.06x = 7,773,635.61
  5. Step 5: Solve for x
    x = 7,773,635.61/2,784.06
  6. Step 6: Final answer
    x = 2,792.19

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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.