Home / 4,140.20-6,210.30-2,390.60

Finding the Fourth Proportional to 4,140.20, 6,210.30 and 2,390.60

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Solution

The fourth proportional to 4,140.20, 6,210.30 and 2,390.60 is: 3,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.20 : 6,210.30 = 2,390.60 : x
  2. Step 2: Convert to fraction form
    4,140.20/6,210.30 = 2,390.60/x
  3. Step 3: Cross multiply
    4,140.20x = 6,210.30 × 2,390.60
  4. Step 4: Simplify right side
    4,140.20x = 14,846,343.18
  5. Step 5: Solve for x
    x = 14,846,343.18/4,140.20
  6. Step 6: Final answer
    x = 3,585.90

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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.