Home / 6,541.89-9,813.45-2,159.40

Finding the Fourth Proportional to 6,541.89, 9,813.45 and 2,159.40

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Solution

The fourth proportional to 6,541.89, 9,813.45 and 2,159.40 is: 3,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,541.89 : 9,813.45 = 2,159.40 : x
  2. Step 2: Convert to fraction form
    6,541.89/9,813.45 = 2,159.40/x
  3. Step 3: Cross multiply
    6,541.89x = 9,813.45 × 2,159.40
  4. Step 4: Simplify right side
    6,541.89x = 21,191,163.93
  5. Step 5: Solve for x
    x = 21,191,163.93/6,541.89
  6. Step 6: Final answer
    x = 3,239.30

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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.