Home / 5,158.09-7,118.31-3,033.78

Finding the Fourth Proportional to 5,158.09, 7,118.31 and 3,033.78

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Solution

The fourth proportional to 5,158.09, 7,118.31 and 3,033.78 is: 4,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.09 : 7,118.31 = 3,033.78 : x
  2. Step 2: Convert to fraction form
    5,158.09/7,118.31 = 3,033.78/x
  3. Step 3: Cross multiply
    5,158.09x = 7,118.31 × 3,033.78
  4. Step 4: Simplify right side
    5,158.09x = 21,595,386.51
  5. Step 5: Solve for x
    x = 21,595,386.51/5,158.09
  6. Step 6: Final answer
    x = 4,186.70

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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.