Home / 2,651.12-3,657.29-1,812.99

Finding the Fourth Proportional to 2,651.12, 3,657.29 and 1,812.99

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Solution

The fourth proportional to 2,651.12, 3,657.29 and 1,812.99 is: 2,501.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.12 : 3,657.29 = 1,812.99 : x
  2. Step 2: Convert to fraction form
    2,651.12/3,657.29 = 1,812.99/x
  3. Step 3: Cross multiply
    2,651.12x = 3,657.29 × 1,812.99
  4. Step 4: Simplify right side
    2,651.12x = 6,630,621.13
  5. Step 5: Solve for x
    x = 6,630,621.13/2,651.12
  6. Step 6: Final answer
    x = 2,501.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.