Home / 2,673.09-3,688.79-1,478.16

Finding the Fourth Proportional to 2,673.09, 3,688.79 and 1,478.16

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Solution

The fourth proportional to 2,673.09, 3,688.79 and 1,478.16 is: 2,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,673.09 : 3,688.79 = 1,478.16 : x
  2. Step 2: Convert to fraction form
    2,673.09/3,688.79 = 1,478.16/x
  3. Step 3: Cross multiply
    2,673.09x = 3,688.79 × 1,478.16
  4. Step 4: Simplify right side
    2,673.09x = 5,452,614.44
  5. Step 5: Solve for x
    x = 5,452,614.44/2,673.09
  6. Step 6: Final answer
    x = 2,039.82

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1.5x scale

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.