Home / 1,486.37-2,051.18-823.18

Finding the Fourth Proportional to 1,486.37, 2,051.18 and 823.18

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Solution

The fourth proportional to 1,486.37, 2,051.18 and 823.18 is: 1,135.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486.37 : 2,051.18 = 823.18 : x
  2. Step 2: Convert to fraction form
    1,486.37/2,051.18 = 823.18/x
  3. Step 3: Cross multiply
    1,486.37x = 2,051.18 × 823.18
  4. Step 4: Simplify right side
    1,486.37x = 1,688,490.35
  5. Step 5: Solve for x
    x = 1,688,490.35/1,486.37
  6. Step 6: Final answer
    x = 1,135.98

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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.