Home / 1,646.49-2,271.87-983.31

Finding the Fourth Proportional to 1,646.49, 2,271.87 and 983.31

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Solution

The fourth proportional to 1,646.49, 2,271.87 and 983.31 is: 1,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646.49 : 2,271.87 = 983.31 : x
  2. Step 2: Convert to fraction form
    1,646.49/2,271.87 = 983.31/x
  3. Step 3: Cross multiply
    1,646.49x = 2,271.87 × 983.31
  4. Step 4: Simplify right side
    1,646.49x = 2,233,952.49
  5. Step 5: Solve for x
    x = 2,233,952.49/1,646.49
  6. Step 6: Final answer
    x = 1,356.80

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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.