Home / 5,137.17-7,089.31-2,779.34

Finding the Fourth Proportional to 5,137.17, 7,089.31 and 2,779.34

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Solution

The fourth proportional to 5,137.17, 7,089.31 and 2,779.34 is: 3,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.17 : 7,089.31 = 2,779.34 : x
  2. Step 2: Convert to fraction form
    5,137.17/7,089.31 = 2,779.34/x
  3. Step 3: Cross multiply
    5,137.17x = 7,089.31 × 2,779.34
  4. Step 4: Simplify right side
    5,137.17x = 19,703,602.86
  5. Step 5: Solve for x
    x = 19,703,602.86/5,137.17
  6. Step 6: Final answer
    x = 3,835.50

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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.