Home / 4,779.84-7,169.40-1,317.36

Finding the Fourth Proportional to 4,779.84, 7,169.40 and 1,317.36

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Solution

The fourth proportional to 4,779.84, 7,169.40 and 1,317.36 is: 1,975.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.84 : 7,169.40 = 1,317.36 : x
  2. Step 2: Convert to fraction form
    4,779.84/7,169.40 = 1,317.36/x
  3. Step 3: Cross multiply
    4,779.84x = 7,169.40 × 1,317.36
  4. Step 4: Simplify right side
    4,779.84x = 9,444,680.78
  5. Step 5: Solve for x
    x = 9,444,680.78/4,779.84
  6. Step 6: Final answer
    x = 1,975.94

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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.