Home / 6,490.08-9,737.28-2,790.72

Finding the Fourth Proportional to 6,490.08, 9,737.28 and 2,790.72

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Solution

The fourth proportional to 6,490.08, 9,737.28 and 2,790.72 is: 4,187.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,490.08 : 9,737.28 = 2,790.72 : x
  2. Step 2: Convert to fraction form
    6,490.08/9,737.28 = 2,790.72/x
  3. Step 3: Cross multiply
    6,490.08x = 9,737.28 × 2,790.72
  4. Step 4: Simplify right side
    6,490.08x = 27,174,022.04
  5. Step 5: Solve for x
    x = 27,174,022.04/6,490.08
  6. Step 6: Final answer
    x = 4,187.01

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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.