Home / 3,515.03-5,271.51-2,897.20

Finding the Fourth Proportional to 3,515.03, 5,271.51 and 2,897.20

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Solution

The fourth proportional to 3,515.03, 5,271.51 and 2,897.20 is: 4,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.03 : 5,271.51 = 2,897.20 : x
  2. Step 2: Convert to fraction form
    3,515.03/5,271.51 = 2,897.20/x
  3. Step 3: Cross multiply
    3,515.03x = 5,271.51 × 2,897.20
  4. Step 4: Simplify right side
    3,515.03x = 15,272,618.77
  5. Step 5: Solve for x
    x = 15,272,618.77/3,515.03
  6. Step 6: Final answer
    x = 4,344.95

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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.