Home / 4,380.81-6,572.09-1,420.01

Finding the Fourth Proportional to 4,380.81, 6,572.09 and 1,420.01

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Solution

The fourth proportional to 4,380.81, 6,572.09 and 1,420.01 is: 2,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380.81 : 6,572.09 = 1,420.01 : x
  2. Step 2: Convert to fraction form
    4,380.81/6,572.09 = 1,420.01/x
  3. Step 3: Cross multiply
    4,380.81x = 6,572.09 × 1,420.01
  4. Step 4: Simplify right side
    4,380.81x = 9,332,402.38
  5. Step 5: Solve for x
    x = 9,332,402.38/4,380.81
  6. Step 6: Final answer
    x = 2,130.29

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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.