Home / 2,463.21-3,688.95-1,421.04

Finding the Fourth Proportional to 2,463.21, 3,688.95 and 1,421.04

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Solution

The fourth proportional to 2,463.21, 3,688.95 and 1,421.04 is: 2,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,463.21 : 3,688.95 = 1,421.04 : x
  2. Step 2: Convert to fraction form
    2,463.21/3,688.95 = 1,421.04/x
  3. Step 3: Cross multiply
    2,463.21x = 3,688.95 × 1,421.04
  4. Step 4: Simplify right side
    2,463.21x = 5,242,119.96
  5. Step 5: Solve for x
    x = 5,242,119.96/2,463.21
  6. Step 6: Final answer
    x = 2,128.16

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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.