Home / 4,210.74-6,316.38-1,291.08

Finding the Fourth Proportional to 4,210.74, 6,316.38 and 1,291.08

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Solution

The fourth proportional to 4,210.74, 6,316.38 and 1,291.08 is: 1,936.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,210.74 : 6,316.38 = 1,291.08 : x
  2. Step 2: Convert to fraction form
    4,210.74/6,316.38 = 1,291.08/x
  3. Step 3: Cross multiply
    4,210.74x = 6,316.38 × 1,291.08
  4. Step 4: Simplify right side
    4,210.74x = 8,154,951.89
  5. Step 5: Solve for x
    x = 8,154,951.89/4,210.74
  6. Step 6: Final answer
    x = 1,936.70

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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.