Home / 7,215.21-10,813.35-3,702.24

Finding the Fourth Proportional to 7,215.21, 10,813.35 and 3,702.24

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Solution

The fourth proportional to 7,215.21, 10,813.35 and 3,702.24 is: 5,548.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.21 : 10,813.35 = 3,702.24 : x
  2. Step 2: Convert to fraction form
    7,215.21/10,813.35 = 3,702.24/x
  3. Step 3: Cross multiply
    7,215.21x = 10,813.35 × 3,702.24
  4. Step 4: Simplify right side
    7,215.21x = 40,033,616.90
  5. Step 5: Solve for x
    x = 40,033,616.90/7,215.21
  6. Step 6: Final answer
    x = 5,548.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.