Home / 2,045.87-2,823.41-1,207.07

Finding the Fourth Proportional to 2,045.87, 2,823.41 and 1,207.07

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Solution

The fourth proportional to 2,045.87, 2,823.41 and 1,207.07 is: 1,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.87 : 2,823.41 = 1,207.07 : x
  2. Step 2: Convert to fraction form
    2,045.87/2,823.41 = 1,207.07/x
  3. Step 3: Cross multiply
    2,045.87x = 2,823.41 × 1,207.07
  4. Step 4: Simplify right side
    2,045.87x = 3,408,039.39
  5. Step 5: Solve for x
    x = 3,408,039.39/2,045.87
  6. Step 6: Final answer
    x = 1,665.81

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1.5x scale

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.