Home / 3,616.22-4,988.72-2,123.66

Finding the Fourth Proportional to 3,616.22, 4,988.72 and 2,123.66

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Solution

The fourth proportional to 3,616.22, 4,988.72 and 2,123.66 is: 2,929.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.22 : 4,988.72 = 2,123.66 : x
  2. Step 2: Convert to fraction form
    3,616.22/4,988.72 = 2,123.66/x
  3. Step 3: Cross multiply
    3,616.22x = 4,988.72 × 2,123.66
  4. Step 4: Simplify right side
    3,616.22x = 10,594,345.12
  5. Step 5: Solve for x
    x = 10,594,345.12/3,616.22
  6. Step 6: Final answer
    x = 2,929.67

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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.