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Finding the Fourth Proportional to 6,165.40, 8,505.28 and 4,484.20

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Solution

The fourth proportional to 6,165.40, 8,505.28 and 4,484.20 is: 6,186.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,165.40 : 8,505.28 = 4,484.20 : x
  2. Step 2: Convert to fraction form
    6,165.40/8,505.28 = 4,484.20/x
  3. Step 3: Cross multiply
    6,165.40x = 8,505.28 × 4,484.20
  4. Step 4: Simplify right side
    6,165.40x = 38,139,376.58
  5. Step 5: Solve for x
    x = 38,139,376.58/6,165.40
  6. Step 6: Final answer
    x = 6,186.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.