Home / 5,137.16-7,089.27-2,779.30

Finding the Fourth Proportional to 5,137.16, 7,089.27 and 2,779.30

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Solution

The fourth proportional to 5,137.16, 7,089.27 and 2,779.30 is: 3,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.16 : 7,089.27 = 2,779.30 : x
  2. Step 2: Convert to fraction form
    5,137.16/7,089.27 = 2,779.30/x
  3. Step 3: Cross multiply
    5,137.16x = 7,089.27 × 2,779.30
  4. Step 4: Simplify right side
    5,137.16x = 19,703,208.11
  5. Step 5: Solve for x
    x = 19,703,208.11/5,137.16
  6. Step 6: Final answer
    x = 3,835.43

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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.