Home / 5,421.42-8,126.01-2,459.34

Finding the Fourth Proportional to 5,421.42, 8,126.01 and 2,459.34

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Solution

The fourth proportional to 5,421.42, 8,126.01 and 2,459.34 is: 3,686.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,421.42 : 8,126.01 = 2,459.34 : x
  2. Step 2: Convert to fraction form
    5,421.42/8,126.01 = 2,459.34/x
  3. Step 3: Cross multiply
    5,421.42x = 8,126.01 × 2,459.34
  4. Step 4: Simplify right side
    5,421.42x = 19,984,621.43
  5. Step 5: Solve for x
    x = 19,984,621.43/5,421.42
  6. Step 6: Final answer
    x = 3,686.23

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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.