Home / 2,688.77-4,032.70-1,227.58

Finding the Fourth Proportional to 2,688.77, 4,032.70 and 1,227.58

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Solution

The fourth proportional to 2,688.77, 4,032.70 and 1,227.58 is: 1,841.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.77 : 4,032.70 = 1,227.58 : x
  2. Step 2: Convert to fraction form
    2,688.77/4,032.70 = 1,227.58/x
  3. Step 3: Cross multiply
    2,688.77x = 4,032.70 × 1,227.58
  4. Step 4: Simplify right side
    2,688.77x = 4,950,448.72
  5. Step 5: Solve for x
    x = 4,950,448.72/2,688.77
  6. Step 6: Final answer
    x = 1,841.16

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1.5x scale

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.