Home / 7,421.14-10,240.93-4,435.21

Finding the Fourth Proportional to 7,421.14, 10,240.93 and 4,435.21

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Solution

The fourth proportional to 7,421.14, 10,240.93 and 4,435.21 is: 6,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.14 : 10,240.93 = 4,435.21 : x
  2. Step 2: Convert to fraction form
    7,421.14/10,240.93 = 4,435.21/x
  3. Step 3: Cross multiply
    7,421.14x = 10,240.93 × 4,435.21
  4. Step 4: Simplify right side
    7,421.14x = 45,420,675.15
  5. Step 5: Solve for x
    x = 45,420,675.15/7,421.14
  6. Step 6: Final answer
    x = 6,120.44

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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.