Home / 8,740.29-13,111.43-2,896.90

Finding the Fourth Proportional to 8,740.29, 13,111.43 and 2,896.90

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Solution

The fourth proportional to 8,740.29, 13,111.43 and 2,896.90 is: 4,345.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,740.29 : 13,111.43 = 2,896.90 : x
  2. Step 2: Convert to fraction form
    8,740.29/13,111.43 = 2,896.90/x
  3. Step 3: Cross multiply
    8,740.29x = 13,111.43 × 2,896.90
  4. Step 4: Simplify right side
    8,740.29x = 37,982,501.57
  5. Step 5: Solve for x
    x = 37,982,501.57/8,740.29
  6. Step 6: Final answer
    x = 4,345.68

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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.