Home / 5,430.76-8,146.56-1,732.84

Finding the Fourth Proportional to 5,430.76, 8,146.56 and 1,732.84

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Solution

The fourth proportional to 5,430.76, 8,146.56 and 1,732.84 is: 2,599.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430.76 : 8,146.56 = 1,732.84 : x
  2. Step 2: Convert to fraction form
    5,430.76/8,146.56 = 1,732.84/x
  3. Step 3: Cross multiply
    5,430.76x = 8,146.56 × 1,732.84
  4. Step 4: Simplify right side
    5,430.76x = 14,116,685.03
  5. Step 5: Solve for x
    x = 14,116,685.03/5,430.76
  6. Step 6: Final answer
    x = 2,599.39

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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.