Home / 4,210.87-6,316.31-1,289.16

Finding the Fourth Proportional to 4,210.87, 6,316.31 and 1,289.16

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Solution

The fourth proportional to 4,210.87, 6,316.31 and 1,289.16 is: 1,933.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.87 : 6,316.31 = 1,289.16 : x
  2. Step 2: Convert to fraction form
    4,210.87/6,316.31 = 1,289.16/x
  3. Step 3: Cross multiply
    4,210.87x = 6,316.31 × 1,289.16
  4. Step 4: Simplify right side
    4,210.87x = 8,142,734.20
  5. Step 5: Solve for x
    x = 8,142,734.20/4,210.87
  6. Step 6: Final answer
    x = 1,933.74

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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.