Home / 5,137.07-7,089.12-2,779.16

Finding the Fourth Proportional to 5,137.07, 7,089.12 and 2,779.16

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Solution

The fourth proportional to 5,137.07, 7,089.12 and 2,779.16 is: 3,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.07 : 7,089.12 = 2,779.16 : x
  2. Step 2: Convert to fraction form
    5,137.07/7,089.12 = 2,779.16/x
  3. Step 3: Cross multiply
    5,137.07x = 7,089.12 × 2,779.16
  4. Step 4: Simplify right side
    5,137.07x = 19,701,763.29
  5. Step 5: Solve for x
    x = 19,701,763.29/5,137.07
  6. Step 6: Final answer
    x = 3,835.22

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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.