Home / 5,130.52-7,681.80-4,028.52

Finding the Fourth Proportional to 5,130.52, 7,681.80 and 4,028.52

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Solution

The fourth proportional to 5,130.52, 7,681.80 and 4,028.52 is: 6,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130.52 : 7,681.80 = 4,028.52 : x
  2. Step 2: Convert to fraction form
    5,130.52/7,681.80 = 4,028.52/x
  3. Step 3: Cross multiply
    5,130.52x = 7,681.80 × 4,028.52
  4. Step 4: Simplify right side
    5,130.52x = 30,946,284.94
  5. Step 5: Solve for x
    x = 30,946,284.94/5,130.52
  6. Step 6: Final answer
    x = 6,031.80

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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.