Home / 5,070.20-7,604.70-1,372.20

Finding the Fourth Proportional to 5,070.20, 7,604.70 and 1,372.20

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Solution

The fourth proportional to 5,070.20, 7,604.70 and 1,372.20 is: 2,058.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,070.20 : 7,604.70 = 1,372.20 : x
  2. Step 2: Convert to fraction form
    5,070.20/7,604.70 = 1,372.20/x
  3. Step 3: Cross multiply
    5,070.20x = 7,604.70 × 1,372.20
  4. Step 4: Simplify right side
    5,070.20x = 10,435,169.34
  5. Step 5: Solve for x
    x = 10,435,169.34/5,070.20
  6. Step 6: Final answer
    x = 2,058.14

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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.