Home / 3,220.07-4,443.47-1,803.51

Finding the Fourth Proportional to 3,220.07, 4,443.47 and 1,803.51

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Solution

The fourth proportional to 3,220.07, 4,443.47 and 1,803.51 is: 2,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.07 : 4,443.47 = 1,803.51 : x
  2. Step 2: Convert to fraction form
    3,220.07/4,443.47 = 1,803.51/x
  3. Step 3: Cross multiply
    3,220.07x = 4,443.47 × 1,803.51
  4. Step 4: Simplify right side
    3,220.07x = 8,013,833.56
  5. Step 5: Solve for x
    x = 8,013,833.56/3,220.07
  6. Step 6: Final answer
    x = 2,488.72

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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.