Home / 2,142.37-3,210.08-1,100.93

Finding the Fourth Proportional to 2,142.37, 3,210.08 and 1,100.93

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Solution

The fourth proportional to 2,142.37, 3,210.08 and 1,100.93 is: 1,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142.37 : 3,210.08 = 1,100.93 : x
  2. Step 2: Convert to fraction form
    2,142.37/3,210.08 = 1,100.93/x
  3. Step 3: Cross multiply
    2,142.37x = 3,210.08 × 1,100.93
  4. Step 4: Simplify right side
    2,142.37x = 3,534,051.82
  5. Step 5: Solve for x
    x = 3,534,051.82/2,142.37
  6. Step 6: Final answer
    x = 1,649.60

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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.