Home / 6,539.89-9,810.45-2,157.40

Finding the Fourth Proportional to 6,539.89, 9,810.45 and 2,157.40

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Solution

The fourth proportional to 6,539.89, 9,810.45 and 2,157.40 is: 3,236.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.89 : 9,810.45 = 2,157.40 : x
  2. Step 2: Convert to fraction form
    6,539.89/9,810.45 = 2,157.40/x
  3. Step 3: Cross multiply
    6,539.89x = 9,810.45 × 2,157.40
  4. Step 4: Simplify right side
    6,539.89x = 21,165,064.83
  5. Step 5: Solve for x
    x = 21,165,064.83/6,539.89
  6. Step 6: Final answer
    x = 3,236.30

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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.