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Finding the Fourth Proportional to 1,669.51, 2,303.87 and 923.47

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Solution

The fourth proportional to 1,669.51, 2,303.87 and 923.47 is: 1,274.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.51 : 2,303.87 = 923.47 : x
  2. Step 2: Convert to fraction form
    1,669.51/2,303.87 = 923.47/x
  3. Step 3: Cross multiply
    1,669.51x = 2,303.87 × 923.47
  4. Step 4: Simplify right side
    1,669.51x = 2,127,554.83
  5. Step 5: Solve for x
    x = 2,127,554.83/1,669.51
  6. Step 6: Final answer
    x = 1,274.36

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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.