Home / 1,006.16-1,387.44-983.52

Finding the Fourth Proportional to 1,006.16, 1,387.44 and 983.52

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Solution

The fourth proportional to 1,006.16, 1,387.44 and 983.52 is: 1,356.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006.16 : 1,387.44 = 983.52 : x
  2. Step 2: Convert to fraction form
    1,006.16/1,387.44 = 983.52/x
  3. Step 3: Cross multiply
    1,006.16x = 1,387.44 × 983.52
  4. Step 4: Simplify right side
    1,006.16x = 1,364,574.99
  5. Step 5: Solve for x
    x = 1,364,574.99/1,006.16
  6. Step 6: Final answer
    x = 1,356.23

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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.