Home / 3,312.81-4,967.87-1,438.83

Finding the Fourth Proportional to 3,312.81, 4,967.87 and 1,438.83

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Solution

The fourth proportional to 3,312.81, 4,967.87 and 1,438.83 is: 2,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312.81 : 4,967.87 = 1,438.83 : x
  2. Step 2: Convert to fraction form
    3,312.81/4,967.87 = 1,438.83/x
  3. Step 3: Cross multiply
    3,312.81x = 4,967.87 × 1,438.83
  4. Step 4: Simplify right side
    3,312.81x = 7,147,913.20
  5. Step 5: Solve for x
    x = 7,147,913.20/3,312.81
  6. Step 6: Final answer
    x = 2,157.66

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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.