Home / 7,572.80-10,450.30-4,215.64

Finding the Fourth Proportional to 7,572.80, 10,450.30 and 4,215.64

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Solution

The fourth proportional to 7,572.80, 10,450.30 and 4,215.64 is: 5,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.80 : 10,450.30 = 4,215.64 : x
  2. Step 2: Convert to fraction form
    7,572.80/10,450.30 = 4,215.64/x
  3. Step 3: Cross multiply
    7,572.80x = 10,450.30 × 4,215.64
  4. Step 4: Simplify right side
    7,572.80x = 44,054,702.69
  5. Step 5: Solve for x
    x = 44,054,702.69/7,572.80
  6. Step 6: Final answer
    x = 5,817.49

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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.