Home / 5,521.32-8,243.82-4,740.21

Finding the Fourth Proportional to 5,521.32, 8,243.82 and 4,740.21

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Solution

The fourth proportional to 5,521.32, 8,243.82 and 4,740.21 is: 7,077.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.32 : 8,243.82 = 4,740.21 : x
  2. Step 2: Convert to fraction form
    5,521.32/8,243.82 = 4,740.21/x
  3. Step 3: Cross multiply
    5,521.32x = 8,243.82 × 4,740.21
  4. Step 4: Simplify right side
    5,521.32x = 39,077,438.00
  5. Step 5: Solve for x
    x = 39,077,438.00/5,521.32
  6. Step 6: Final answer
    x = 7,077.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.