Home / 4,287.89-6,420.58-3,450.51

Finding the Fourth Proportional to 4,287.89, 6,420.58 and 3,450.51

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Solution

The fourth proportional to 4,287.89, 6,420.58 and 3,450.51 is: 5,166.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.89 : 6,420.58 = 3,450.51 : x
  2. Step 2: Convert to fraction form
    4,287.89/6,420.58 = 3,450.51/x
  3. Step 3: Cross multiply
    4,287.89x = 6,420.58 × 3,450.51
  4. Step 4: Simplify right side
    4,287.89x = 22,154,266.87
  5. Step 5: Solve for x
    x = 22,154,266.87/4,287.89
  6. Step 6: Final answer
    x = 5,166.70

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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.