Home / 6,539.70-9,807.15-2,157.30

Finding the Fourth Proportional to 6,539.70, 9,807.15 and 2,157.30

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Solution

The fourth proportional to 6,539.70, 9,807.15 and 2,157.30 is: 3,235.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.70 : 9,807.15 = 2,157.30 : x
  2. Step 2: Convert to fraction form
    6,539.70/9,807.15 = 2,157.30/x
  3. Step 3: Cross multiply
    6,539.70x = 9,807.15 × 2,157.30
  4. Step 4: Simplify right side
    6,539.70x = 21,156,964.70
  5. Step 5: Solve for x
    x = 21,156,964.70/6,539.70
  6. Step 6: Final answer
    x = 3,235.16

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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.