Home / 1,011.15-1,514.37-983.46

Finding the Fourth Proportional to 1,011.15, 1,514.37 and 983.46

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Solution

The fourth proportional to 1,011.15, 1,514.37 and 983.46 is: 1,472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011.15 : 1,514.37 = 983.46 : x
  2. Step 2: Convert to fraction form
    1,011.15/1,514.37 = 983.46/x
  3. Step 3: Cross multiply
    1,011.15x = 1,514.37 × 983.46
  4. Step 4: Simplify right side
    1,011.15x = 1,489,322.32
  5. Step 5: Solve for x
    x = 1,489,322.32/1,011.15
  6. Step 6: Final answer
    x = 1,472.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.