Home / 4,767.23-7,139.57-2,421.42

Finding the Fourth Proportional to 4,767.23, 7,139.57 and 2,421.42

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Solution

The fourth proportional to 4,767.23, 7,139.57 and 2,421.42 is: 3,626.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.23 : 7,139.57 = 2,421.42 : x
  2. Step 2: Convert to fraction form
    4,767.23/7,139.57 = 2,421.42/x
  3. Step 3: Cross multiply
    4,767.23x = 7,139.57 × 2,421.42
  4. Step 4: Simplify right side
    4,767.23x = 17,287,885.60
  5. Step 5: Solve for x
    x = 17,287,885.60/4,767.23
  6. Step 6: Final answer
    x = 3,626.40

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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.