Home / 1,861.95-2,788.53-1,617.17

Finding the Fourth Proportional to 1,861.95, 2,788.53 and 1,617.17

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Solution

The fourth proportional to 1,861.95, 2,788.53 and 1,617.17 is: 2,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,861.95 : 2,788.53 = 1,617.17 : x
  2. Step 2: Convert to fraction form
    1,861.95/2,788.53 = 1,617.17/x
  3. Step 3: Cross multiply
    1,861.95x = 2,788.53 × 1,617.17
  4. Step 4: Simplify right side
    1,861.95x = 4,509,513.12
  5. Step 5: Solve for x
    x = 4,509,513.12/1,861.95
  6. Step 6: Final answer
    x = 2,421.93

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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.