Home / 4,770.30-6,580.80-2,779.68

Finding the Fourth Proportional to 4,770.30, 6,580.80 and 2,779.68

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Solution

The fourth proportional to 4,770.30, 6,580.80 and 2,779.68 is: 3,834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,770.30 : 6,580.80 = 2,779.68 : x
  2. Step 2: Convert to fraction form
    4,770.30/6,580.80 = 2,779.68/x
  3. Step 3: Cross multiply
    4,770.30x = 6,580.80 × 2,779.68
  4. Step 4: Simplify right side
    4,770.30x = 18,292,518.14
  5. Step 5: Solve for x
    x = 18,292,518.14/4,770.30
  6. Step 6: Final answer
    x = 3,834.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.