Home / 1,579.77-2,381.67-1,485.81

Finding the Fourth Proportional to 1,579.77, 2,381.67 and 1,485.81

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Solution

The fourth proportional to 1,579.77, 2,381.67 and 1,485.81 is: 2,240.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.77 : 2,381.67 = 1,485.81 : x
  2. Step 2: Convert to fraction form
    1,579.77/2,381.67 = 1,485.81/x
  3. Step 3: Cross multiply
    1,579.77x = 2,381.67 × 1,485.81
  4. Step 4: Simplify right side
    1,579.77x = 3,538,709.10
  5. Step 5: Solve for x
    x = 3,538,709.10/1,579.77
  6. Step 6: Final answer
    x = 2,240.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.