Home / 5,431.17-8,145.70-1,732.41

Finding the Fourth Proportional to 5,431.17, 8,145.70 and 1,732.41

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Solution

The fourth proportional to 5,431.17, 8,145.70 and 1,732.41 is: 2,598.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.17 : 8,145.70 = 1,732.41 : x
  2. Step 2: Convert to fraction form
    5,431.17/8,145.70 = 1,732.41/x
  3. Step 3: Cross multiply
    5,431.17x = 8,145.70 × 1,732.41
  4. Step 4: Simplify right side
    5,431.17x = 14,111,687.81
  5. Step 5: Solve for x
    x = 14,111,687.81/5,431.17
  6. Step 6: Final answer
    x = 2,598.28

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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.