Home / 4,770.70-7,155.18-1,307.92

Finding the Fourth Proportional to 4,770.70, 7,155.18 and 1,307.92

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Solution

The fourth proportional to 4,770.70, 7,155.18 and 1,307.92 is: 1,961.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.70 : 7,155.18 = 1,307.92 : x
  2. Step 2: Convert to fraction form
    4,770.70/7,155.18 = 1,307.92/x
  3. Step 3: Cross multiply
    4,770.70x = 7,155.18 × 1,307.92
  4. Step 4: Simplify right side
    4,770.70x = 9,358,403.03
  5. Step 5: Solve for x
    x = 9,358,403.03/4,770.70
  6. Step 6: Final answer
    x = 1,961.64

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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.