Home / 2,775.36-4,139.51-2,339.48

Finding the Fourth Proportional to 2,775.36, 4,139.51 and 2,339.48

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Solution

The fourth proportional to 2,775.36, 4,139.51 and 2,339.48 is: 3,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.36 : 4,139.51 = 2,339.48 : x
  2. Step 2: Convert to fraction form
    2,775.36/4,139.51 = 2,339.48/x
  3. Step 3: Cross multiply
    2,775.36x = 4,139.51 × 2,339.48
  4. Step 4: Simplify right side
    2,775.36x = 9,684,299.51
  5. Step 5: Solve for x
    x = 9,684,299.51/2,775.36
  6. Step 6: Final answer
    x = 3,489.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.