Home / 4,292.10-6,438.15-1,983.60

Finding the Fourth Proportional to 4,292.10, 6,438.15 and 1,983.60

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Solution

The fourth proportional to 4,292.10, 6,438.15 and 1,983.60 is: 2,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.10 : 6,438.15 = 1,983.60 : x
  2. Step 2: Convert to fraction form
    4,292.10/6,438.15 = 1,983.60/x
  3. Step 3: Cross multiply
    4,292.10x = 6,438.15 × 1,983.60
  4. Step 4: Simplify right side
    4,292.10x = 12,770,714.34
  5. Step 5: Solve for x
    x = 12,770,714.34/4,292.10
  6. Step 6: Final answer
    x = 2,975.40

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Similar ratio
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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.