Home / 4,779.56-7,169.34-1,316.81

Finding the Fourth Proportional to 4,779.56, 7,169.34 and 1,316.81

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Solution

The fourth proportional to 4,779.56, 7,169.34 and 1,316.81 is: 1,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,779.56 : 7,169.34 = 1,316.81 : x
  2. Step 2: Convert to fraction form
    4,779.56/7,169.34 = 1,316.81/x
  3. Step 3: Cross multiply
    4,779.56x = 7,169.34 × 1,316.81
  4. Step 4: Simplify right side
    4,779.56x = 9,440,681.47
  5. Step 5: Solve for x
    x = 9,440,681.47/4,779.56
  6. Step 6: Final answer
    x = 1,975.22

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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.