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Finding the Fourth Proportional to 2,370.32, 3,554.72 and 909.84

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Solution

The fourth proportional to 2,370.32, 3,554.72 and 909.84 is: 1,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.32 : 3,554.72 = 909.84 : x
  2. Step 2: Convert to fraction form
    2,370.32/3,554.72 = 909.84/x
  3. Step 3: Cross multiply
    2,370.32x = 3,554.72 × 909.84
  4. Step 4: Simplify right side
    2,370.32x = 3,234,226.44
  5. Step 5: Solve for x
    x = 3,234,226.44/2,370.32
  6. Step 6: Final answer
    x = 1,364.47

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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.