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Finding the Fourth Proportional to 6,339.12, 9,505.02 and 1,955.40

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Solution

The fourth proportional to 6,339.12, 9,505.02 and 1,955.40 is: 2,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.12 : 9,505.02 = 1,955.40 : x
  2. Step 2: Convert to fraction form
    6,339.12/9,505.02 = 1,955.40/x
  3. Step 3: Cross multiply
    6,339.12x = 9,505.02 × 1,955.40
  4. Step 4: Simplify right side
    6,339.12x = 18,586,116.11
  5. Step 5: Solve for x
    x = 18,586,116.11/6,339.12
  6. Step 6: Final answer
    x = 2,931.97

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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.