Home / 1,913.51-2,870.60-1,183.91

Finding the Fourth Proportional to 1,913.51, 2,870.60 and 1,183.91

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Solution

The fourth proportional to 1,913.51, 2,870.60 and 1,183.91 is: 1,776.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913.51 : 2,870.60 = 1,183.91 : x
  2. Step 2: Convert to fraction form
    1,913.51/2,870.60 = 1,183.91/x
  3. Step 3: Cross multiply
    1,913.51x = 2,870.60 × 1,183.91
  4. Step 4: Simplify right side
    1,913.51x = 3,398,511.77
  5. Step 5: Solve for x
    x = 3,398,511.77/1,913.51
  6. Step 6: Final answer
    x = 1,776.07

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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.