Home / 5,779.49-7,975.64-3,126.84

Finding the Fourth Proportional to 5,779.49, 7,975.64 and 3,126.84

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Solution

The fourth proportional to 5,779.49, 7,975.64 and 3,126.84 is: 4,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,779.49 : 7,975.64 = 3,126.84 : x
  2. Step 2: Convert to fraction form
    5,779.49/7,975.64 = 3,126.84/x
  3. Step 3: Cross multiply
    5,779.49x = 7,975.64 × 3,126.84
  4. Step 4: Simplify right side
    5,779.49x = 24,938,528.09
  5. Step 5: Solve for x
    x = 24,938,528.09/5,779.49
  6. Step 6: Final answer
    x = 4,315.01

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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.