Home / 2,918.63-4,395.06-2,102.56

Finding the Fourth Proportional to 2,918.63, 4,395.06 and 2,102.56

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Solution

The fourth proportional to 2,918.63, 4,395.06 and 2,102.56 is: 3,166.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.63 : 4,395.06 = 2,102.56 : x
  2. Step 2: Convert to fraction form
    2,918.63/4,395.06 = 2,102.56/x
  3. Step 3: Cross multiply
    2,918.63x = 4,395.06 × 2,102.56
  4. Step 4: Simplify right side
    2,918.63x = 9,240,866.37
  5. Step 5: Solve for x
    x = 9,240,866.37/2,918.63
  6. Step 6: Final answer
    x = 3,166.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.