Home / 5,430.39-8,146.80-1,732.83

Finding the Fourth Proportional to 5,430.39, 8,146.80 and 1,732.83

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Solution

The fourth proportional to 5,430.39, 8,146.80 and 1,732.83 is: 2,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.39 : 8,146.80 = 1,732.83 : x
  2. Step 2: Convert to fraction form
    5,430.39/8,146.80 = 1,732.83/x
  3. Step 3: Cross multiply
    5,430.39x = 8,146.80 × 1,732.83
  4. Step 4: Simplify right side
    5,430.39x = 14,117,019.44
  5. Step 5: Solve for x
    x = 14,117,019.44/5,430.39
  6. Step 6: Final answer
    x = 2,599.63

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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.