Home / 4,899.90-7,348.48-1,389.62

Finding the Fourth Proportional to 4,899.90, 7,348.48 and 1,389.62

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Solution

The fourth proportional to 4,899.90, 7,348.48 and 1,389.62 is: 2,084.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,899.90 : 7,348.48 = 1,389.62 : x
  2. Step 2: Convert to fraction form
    4,899.90/7,348.48 = 1,389.62/x
  3. Step 3: Cross multiply
    4,899.90x = 7,348.48 × 1,389.62
  4. Step 4: Simplify right side
    4,899.90x = 10,211,594.78
  5. Step 5: Solve for x
    x = 10,211,594.78/4,899.90
  6. Step 6: Final answer
    x = 2,084.04

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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.