Home / 3,487.13-4,810.07-2,160.89

Finding the Fourth Proportional to 3,487.13, 4,810.07 and 2,160.89

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Solution

The fourth proportional to 3,487.13, 4,810.07 and 2,160.89 is: 2,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.13 : 4,810.07 = 2,160.89 : x
  2. Step 2: Convert to fraction form
    3,487.13/4,810.07 = 2,160.89/x
  3. Step 3: Cross multiply
    3,487.13x = 4,810.07 × 2,160.89
  4. Step 4: Simplify right side
    3,487.13x = 10,394,021.36
  5. Step 5: Solve for x
    x = 10,394,021.36/3,487.13
  6. Step 6: Final answer
    x = 2,980.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.