Home / 7,149.36-10,723.68-2,988.48

Finding the Fourth Proportional to 7,149.36, 10,723.68 and 2,988.48

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Solution

The fourth proportional to 7,149.36, 10,723.68 and 2,988.48 is: 4,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,149.36 : 10,723.68 = 2,988.48 : x
  2. Step 2: Convert to fraction form
    7,149.36/10,723.68 = 2,988.48/x
  3. Step 3: Cross multiply
    7,149.36x = 10,723.68 × 2,988.48
  4. Step 4: Simplify right side
    7,149.36x = 32,047,503.21
  5. Step 5: Solve for x
    x = 32,047,503.21/7,149.36
  6. Step 6: Final answer
    x = 4,482.57

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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.