Home / 4,779.81-7,170.93-1,858.95

Finding the Fourth Proportional to 4,779.81, 7,170.93 and 1,858.95

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Solution

The fourth proportional to 4,779.81, 7,170.93 and 1,858.95 is: 2,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.81 : 7,170.93 = 1,858.95 : x
  2. Step 2: Convert to fraction form
    4,779.81/7,170.93 = 1,858.95/x
  3. Step 3: Cross multiply
    4,779.81x = 7,170.93 × 1,858.95
  4. Step 4: Simplify right side
    4,779.81x = 13,330,400.32
  5. Step 5: Solve for x
    x = 13,330,400.32/4,779.81
  6. Step 6: Final answer
    x = 2,788.90

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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.