Home / 7,040.75-9,707.40-4,518.41

Finding the Fourth Proportional to 7,040.75, 9,707.40 and 4,518.41

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Solution

The fourth proportional to 7,040.75, 9,707.40 and 4,518.41 is: 6,229.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.75 : 9,707.40 = 4,518.41 : x
  2. Step 2: Convert to fraction form
    7,040.75/9,707.40 = 4,518.41/x
  3. Step 3: Cross multiply
    7,040.75x = 9,707.40 × 4,518.41
  4. Step 4: Simplify right side
    7,040.75x = 43,862,013.23
  5. Step 5: Solve for x
    x = 43,862,013.23/7,040.75
  6. Step 6: Final answer
    x = 6,229.74

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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.