Home / 5,438.53-8,157.70-2,316.88

Finding the Fourth Proportional to 5,438.53, 8,157.70 and 2,316.88

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Solution

The fourth proportional to 5,438.53, 8,157.70 and 2,316.88 is: 3,475.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438.53 : 8,157.70 = 2,316.88 : x
  2. Step 2: Convert to fraction form
    5,438.53/8,157.70 = 2,316.88/x
  3. Step 3: Cross multiply
    5,438.53x = 8,157.70 × 2,316.88
  4. Step 4: Simplify right side
    5,438.53x = 18,900,411.98
  5. Step 5: Solve for x
    x = 18,900,411.98/5,438.53
  6. Step 6: Final answer
    x = 3,475.28

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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.