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Finding the Fourth Proportional to 2,888.79, 4,332.09 and 2,279.67

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Solution

The fourth proportional to 2,888.79, 4,332.09 and 2,279.67 is: 3,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,888.79 : 4,332.09 = 2,279.67 : x
  2. Step 2: Convert to fraction form
    2,888.79/4,332.09 = 2,279.67/x
  3. Step 3: Cross multiply
    2,888.79x = 4,332.09 × 2,279.67
  4. Step 4: Simplify right side
    2,888.79x = 9,875,735.61
  5. Step 5: Solve for x
    x = 9,875,735.61/2,888.79
  6. Step 6: Final answer
    x = 3,418.64

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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.