Home / 5,130.24-7,699.52-2,665.76

Finding the Fourth Proportional to 5,130.24, 7,699.52 and 2,665.76

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Solution

The fourth proportional to 5,130.24, 7,699.52 and 2,665.76 is: 4,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.24 : 7,699.52 = 2,665.76 : x
  2. Step 2: Convert to fraction form
    5,130.24/7,699.52 = 2,665.76/x
  3. Step 3: Cross multiply
    5,130.24x = 7,699.52 × 2,665.76
  4. Step 4: Simplify right side
    5,130.24x = 20,525,072.44
  5. Step 5: Solve for x
    x = 20,525,072.44/5,130.24
  6. Step 6: Final answer
    x = 4,000.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.