Home / 4,240.34-6,359.96-1,120.60

Finding the Fourth Proportional to 4,240.34, 6,359.96 and 1,120.60

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Solution

The fourth proportional to 4,240.34, 6,359.96 and 1,120.60 is: 1,680.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.34 : 6,359.96 = 1,120.60 : x
  2. Step 2: Convert to fraction form
    4,240.34/6,359.96 = 1,120.60/x
  3. Step 3: Cross multiply
    4,240.34x = 6,359.96 × 1,120.60
  4. Step 4: Simplify right side
    4,240.34x = 7,126,971.18
  5. Step 5: Solve for x
    x = 7,126,971.18/4,240.34
  6. Step 6: Final answer
    x = 1,680.75

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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.