Home / 6,432.40-9,646.80-2,051.20

Finding the Fourth Proportional to 6,432.40, 9,646.80 and 2,051.20

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Solution

The fourth proportional to 6,432.40, 9,646.80 and 2,051.20 is: 3,076.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.40 : 9,646.80 = 2,051.20 : x
  2. Step 2: Convert to fraction form
    6,432.40/9,646.80 = 2,051.20/x
  3. Step 3: Cross multiply
    6,432.40x = 9,646.80 × 2,051.20
  4. Step 4: Simplify right side
    6,432.40x = 19,787,516.16
  5. Step 5: Solve for x
    x = 19,787,516.16/6,432.40
  6. Step 6: Final answer
    x = 3,076.23

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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.