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Finding the Fourth Proportional to 6,653.40, 9,980.06 and 1,973.44

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Solution

The fourth proportional to 6,653.40, 9,980.06 and 1,973.44 is: 2,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653.40 : 9,980.06 = 1,973.44 : x
  2. Step 2: Convert to fraction form
    6,653.40/9,980.06 = 1,973.44/x
  3. Step 3: Cross multiply
    6,653.40x = 9,980.06 × 1,973.44
  4. Step 4: Simplify right side
    6,653.40x = 19,695,049.61
  5. Step 5: Solve for x
    x = 19,695,049.61/6,653.40
  6. Step 6: Final answer
    x = 2,960.15

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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.