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Finding the Fourth Proportional to 2,865.51, 3,953.01 and 1,804.59

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Solution

The fourth proportional to 2,865.51, 3,953.01 and 1,804.59 is: 2,489.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.51 : 3,953.01 = 1,804.59 : x
  2. Step 2: Convert to fraction form
    2,865.51/3,953.01 = 1,804.59/x
  3. Step 3: Cross multiply
    2,865.51x = 3,953.01 × 1,804.59
  4. Step 4: Simplify right side
    2,865.51x = 7,133,562.32
  5. Step 5: Solve for x
    x = 7,133,562.32/2,865.51
  6. Step 6: Final answer
    x = 2,489.46

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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.