Home / 4,210.50-6,314.52-1,289.02

Finding the Fourth Proportional to 4,210.50, 6,314.52 and 1,289.02

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Solution

The fourth proportional to 4,210.50, 6,314.52 and 1,289.02 is: 1,933.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.50 : 6,314.52 = 1,289.02 : x
  2. Step 2: Convert to fraction form
    4,210.50/6,314.52 = 1,289.02/x
  3. Step 3: Cross multiply
    4,210.50x = 6,314.52 × 1,289.02
  4. Step 4: Simplify right side
    4,210.50x = 8,139,542.57
  5. Step 5: Solve for x
    x = 8,139,542.57/4,210.50
  6. Step 6: Final answer
    x = 1,933.15

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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.