Home / 4,770.03-7,139.49-4,315.35

Finding the Fourth Proportional to 4,770.03, 7,139.49 and 4,315.35

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Solution

The fourth proportional to 4,770.03, 7,139.49 and 4,315.35 is: 6,458.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.03 : 7,139.49 = 4,315.35 : x
  2. Step 2: Convert to fraction form
    4,770.03/7,139.49 = 4,315.35/x
  3. Step 3: Cross multiply
    4,770.03x = 7,139.49 × 4,315.35
  4. Step 4: Simplify right side
    4,770.03x = 30,809,398.17
  5. Step 5: Solve for x
    x = 30,809,398.17/4,770.03
  6. Step 6: Final answer
    x = 6,458.95

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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.