Home / 5,079.49-7,009.37-2,840.98

Finding the Fourth Proportional to 5,079.49, 7,009.37 and 2,840.98

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Solution

The fourth proportional to 5,079.49, 7,009.37 and 2,840.98 is: 3,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.49 : 7,009.37 = 2,840.98 : x
  2. Step 2: Convert to fraction form
    5,079.49/7,009.37 = 2,840.98/x
  3. Step 3: Cross multiply
    5,079.49x = 7,009.37 × 2,840.98
  4. Step 4: Simplify right side
    5,079.49x = 19,913,495.85
  5. Step 5: Solve for x
    x = 19,913,495.85/5,079.49
  6. Step 6: Final answer
    x = 3,920.37

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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.