Home / 2,219.93-3,331.94-1,125.07

Finding the Fourth Proportional to 2,219.93, 3,331.94 and 1,125.07

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Solution

The fourth proportional to 2,219.93, 3,331.94 and 1,125.07 is: 1,688.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.93 : 3,331.94 = 1,125.07 : x
  2. Step 2: Convert to fraction form
    2,219.93/3,331.94 = 1,125.07/x
  3. Step 3: Cross multiply
    2,219.93x = 3,331.94 × 1,125.07
  4. Step 4: Simplify right side
    2,219.93x = 3,748,665.74
  5. Step 5: Solve for x
    x = 3,748,665.74/2,219.93
  6. Step 6: Final answer
    x = 1,688.64

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1.5x scale

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.