Home / 1,601.79-2,210.55-939.03

Finding the Fourth Proportional to 1,601.79, 2,210.55 and 939.03

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Solution

The fourth proportional to 1,601.79, 2,210.55 and 939.03 is: 1,295.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.79 : 2,210.55 = 939.03 : x
  2. Step 2: Convert to fraction form
    1,601.79/2,210.55 = 939.03/x
  3. Step 3: Cross multiply
    1,601.79x = 2,210.55 × 939.03
  4. Step 4: Simplify right side
    1,601.79x = 2,075,772.77
  5. Step 5: Solve for x
    x = 2,075,772.77/1,601.79
  6. Step 6: Final answer
    x = 1,295.91

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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.