Home / 6,415.32-9,621.90-2,520.84

Finding the Fourth Proportional to 6,415.32, 9,621.90 and 2,520.84

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Solution

The fourth proportional to 6,415.32, 9,621.90 and 2,520.84 is: 3,780.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,415.32 : 9,621.90 = 2,520.84 : x
  2. Step 2: Convert to fraction form
    6,415.32/9,621.90 = 2,520.84/x
  3. Step 3: Cross multiply
    6,415.32x = 9,621.90 × 2,520.84
  4. Step 4: Simplify right side
    6,415.32x = 24,255,270.40
  5. Step 5: Solve for x
    x = 24,255,270.40/6,415.32
  6. Step 6: Final answer
    x = 3,780.84

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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.