Home / 1,873.45-2,585.60-1,127.81

Finding the Fourth Proportional to 1,873.45, 2,585.60 and 1,127.81

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Solution

The fourth proportional to 1,873.45, 2,585.60 and 1,127.81 is: 1,556.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.45 : 2,585.60 = 1,127.81 : x
  2. Step 2: Convert to fraction form
    1,873.45/2,585.60 = 1,127.81/x
  3. Step 3: Cross multiply
    1,873.45x = 2,585.60 × 1,127.81
  4. Step 4: Simplify right side
    1,873.45x = 2,916,053.43
  5. Step 5: Solve for x
    x = 2,916,053.43/1,873.45
  6. Step 6: Final answer
    x = 1,556.52

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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.