Home / 3,615.15-5,423.09-1,306.11

Finding the Fourth Proportional to 3,615.15, 5,423.09 and 1,306.11

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Solution

The fourth proportional to 3,615.15, 5,423.09 and 1,306.11 is: 1,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.15 : 5,423.09 = 1,306.11 : x
  2. Step 2: Convert to fraction form
    3,615.15/5,423.09 = 1,306.11/x
  3. Step 3: Cross multiply
    3,615.15x = 5,423.09 × 1,306.11
  4. Step 4: Simplify right side
    3,615.15x = 7,083,152.08
  5. Step 5: Solve for x
    x = 7,083,152.08/3,615.15
  6. Step 6: Final answer
    x = 1,959.30

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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.