Home / 5,154.42-7,732.23-1,643.20

Finding the Fourth Proportional to 5,154.42, 7,732.23 and 1,643.20

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Solution

The fourth proportional to 5,154.42, 7,732.23 and 1,643.20 is: 2,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,154.42 : 7,732.23 = 1,643.20 : x
  2. Step 2: Convert to fraction form
    5,154.42/7,732.23 = 1,643.20/x
  3. Step 3: Cross multiply
    5,154.42x = 7,732.23 × 1,643.20
  4. Step 4: Simplify right side
    5,154.42x = 12,705,600.34
  5. Step 5: Solve for x
    x = 12,705,600.34/5,154.42
  6. Step 6: Final answer
    x = 2,464.99

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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.