Home / 2,923.80-4,354.68-2,909.67

Finding the Fourth Proportional to 2,923.80, 4,354.68 and 2,909.67

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Solution

The fourth proportional to 2,923.80, 4,354.68 and 2,909.67 is: 4,333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.80 : 4,354.68 = 2,909.67 : x
  2. Step 2: Convert to fraction form
    2,923.80/4,354.68 = 2,909.67/x
  3. Step 3: Cross multiply
    2,923.80x = 4,354.68 × 2,909.67
  4. Step 4: Simplify right side
    2,923.80x = 12,670,681.76
  5. Step 5: Solve for x
    x = 12,670,681.76/2,923.80
  6. Step 6: Final answer
    x = 4,333.63

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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.