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Finding the Fourth Proportional to 1,424.68, 1,966.03 and 1,004.59

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Solution

The fourth proportional to 1,424.68, 1,966.03 and 1,004.59 is: 1,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424.68 : 1,966.03 = 1,004.59 : x
  2. Step 2: Convert to fraction form
    1,424.68/1,966.03 = 1,004.59/x
  3. Step 3: Cross multiply
    1,424.68x = 1,966.03 × 1,004.59
  4. Step 4: Simplify right side
    1,424.68x = 1,975,054.08
  5. Step 5: Solve for x
    x = 1,975,054.08/1,424.68
  6. Step 6: Final answer
    x = 1,386.31

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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.