Home / 7,040.16-9,715.41-3,853.44

Finding the Fourth Proportional to 7,040.16, 9,715.41 and 3,853.44

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Solution

The fourth proportional to 7,040.16, 9,715.41 and 3,853.44 is: 5,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.16 : 9,715.41 = 3,853.44 : x
  2. Step 2: Convert to fraction form
    7,040.16/9,715.41 = 3,853.44/x
  3. Step 3: Cross multiply
    7,040.16x = 9,715.41 × 3,853.44
  4. Step 4: Simplify right side
    7,040.16x = 37,437,749.51
  5. Step 5: Solve for x
    x = 37,437,749.51/7,040.16
  6. Step 6: Final answer
    x = 5,317.74

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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.