Home / 5,137.76-7,090.30-2,900.18

Finding the Fourth Proportional to 5,137.76, 7,090.30 and 2,900.18

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Solution

The fourth proportional to 5,137.76, 7,090.30 and 2,900.18 is: 4,002.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,137.76 : 7,090.30 = 2,900.18 : x
  2. Step 2: Convert to fraction form
    5,137.76/7,090.30 = 2,900.18/x
  3. Step 3: Cross multiply
    5,137.76x = 7,090.30 × 2,900.18
  4. Step 4: Simplify right side
    5,137.76x = 20,563,146.25
  5. Step 5: Solve for x
    x = 20,563,146.25/5,137.76
  6. Step 6: Final answer
    x = 4,002.36

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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.