Home / 4,970.10-7,450.51-1,680.89

Finding the Fourth Proportional to 4,970.10, 7,450.51 and 1,680.89

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Solution

The fourth proportional to 4,970.10, 7,450.51 and 1,680.89 is: 2,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,970.10 : 7,450.51 = 1,680.89 : x
  2. Step 2: Convert to fraction form
    4,970.10/7,450.51 = 1,680.89/x
  3. Step 3: Cross multiply
    4,970.10x = 7,450.51 × 1,680.89
  4. Step 4: Simplify right side
    4,970.10x = 12,523,487.75
  5. Step 5: Solve for x
    x = 12,523,487.75/4,970.10
  6. Step 6: Final answer
    x = 2,519.77

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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.