Home / 4,210.96-6,317.50-1,289.12

Finding the Fourth Proportional to 4,210.96, 6,317.50 and 1,289.12

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Solution

The fourth proportional to 4,210.96, 6,317.50 and 1,289.12 is: 1,934.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.96 : 6,317.50 = 1,289.12 : x
  2. Step 2: Convert to fraction form
    4,210.96/6,317.50 = 1,289.12/x
  3. Step 3: Cross multiply
    4,210.96x = 6,317.50 × 1,289.12
  4. Step 4: Simplify right side
    4,210.96x = 8,144,015.60
  5. Step 5: Solve for x
    x = 8,144,015.60/4,210.96
  6. Step 6: Final answer
    x = 1,934.00

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Double scale
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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.