Home / 6,537.81-9,805.70-2,155.31

Finding the Fourth Proportional to 6,537.81, 9,805.70 and 2,155.31

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Solution

The fourth proportional to 6,537.81, 9,805.70 and 2,155.31 is: 3,232.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,537.81 : 9,805.70 = 2,155.31 : x
  2. Step 2: Convert to fraction form
    6,537.81/9,805.70 = 2,155.31/x
  3. Step 3: Cross multiply
    6,537.81x = 9,805.70 × 2,155.31
  4. Step 4: Simplify right side
    6,537.81x = 21,134,263.46
  5. Step 5: Solve for x
    x = 21,134,263.46/6,537.81
  6. Step 6: Final answer
    x = 3,232.62

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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.