Home / 2,333.50-3,220.24-1,389.33

Finding the Fourth Proportional to 2,333.50, 3,220.24 and 1,389.33

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Solution

The fourth proportional to 2,333.50, 3,220.24 and 1,389.33 is: 1,917.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,333.50 : 3,220.24 = 1,389.33 : x
  2. Step 2: Convert to fraction form
    2,333.50/3,220.24 = 1,389.33/x
  3. Step 3: Cross multiply
    2,333.50x = 3,220.24 × 1,389.33
  4. Step 4: Simplify right side
    2,333.50x = 4,473,966.11
  5. Step 5: Solve for x
    x = 4,473,966.11/2,333.50
  6. Step 6: Final answer
    x = 1,917.28

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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.