Home / 5,429.40-8,143.95-1,731.85

Finding the Fourth Proportional to 5,429.40, 8,143.95 and 1,731.85

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Solution

The fourth proportional to 5,429.40, 8,143.95 and 1,731.85 is: 2,597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429.40 : 8,143.95 = 1,731.85 : x
  2. Step 2: Convert to fraction form
    5,429.40/8,143.95 = 1,731.85/x
  3. Step 3: Cross multiply
    5,429.40x = 8,143.95 × 1,731.85
  4. Step 4: Simplify right side
    5,429.40x = 14,104,099.81
  5. Step 5: Solve for x
    x = 14,104,099.81/5,429.40
  6. Step 6: Final answer
    x = 2,597.73

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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.