Home / 4,709.21-7,062.53-1,421.42

Finding the Fourth Proportional to 4,709.21, 7,062.53 and 1,421.42

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Solution

The fourth proportional to 4,709.21, 7,062.53 and 1,421.42 is: 2,131.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,709.21 : 7,062.53 = 1,421.42 : x
  2. Step 2: Convert to fraction form
    4,709.21/7,062.53 = 1,421.42/x
  3. Step 3: Cross multiply
    4,709.21x = 7,062.53 × 1,421.42
  4. Step 4: Simplify right side
    4,709.21x = 10,038,778.97
  5. Step 5: Solve for x
    x = 10,038,778.97/4,709.21
  6. Step 6: Final answer
    x = 2,131.74

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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.