Home / 3,207.02-4,810.61-985.91

Finding the Fourth Proportional to 3,207.02, 4,810.61 and 985.91

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Solution

The fourth proportional to 3,207.02, 4,810.61 and 985.91 is: 1,478.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207.02 : 4,810.61 = 985.91 : x
  2. Step 2: Convert to fraction form
    3,207.02/4,810.61 = 985.91/x
  3. Step 3: Cross multiply
    3,207.02x = 4,810.61 × 985.91
  4. Step 4: Simplify right side
    3,207.02x = 4,742,806.92
  5. Step 5: Solve for x
    x = 4,742,806.92/3,207.02
  6. Step 6: Final answer
    x = 1,478.89

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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.