Home / 3,319.79-4,964.49-2,487.51

Finding the Fourth Proportional to 3,319.79, 4,964.49 and 2,487.51

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Solution

The fourth proportional to 3,319.79, 4,964.49 and 2,487.51 is: 3,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.79 : 4,964.49 = 2,487.51 : x
  2. Step 2: Convert to fraction form
    3,319.79/4,964.49 = 2,487.51/x
  3. Step 3: Cross multiply
    3,319.79x = 4,964.49 × 2,487.51
  4. Step 4: Simplify right side
    3,319.79x = 12,349,218.52
  5. Step 5: Solve for x
    x = 12,349,218.52/3,319.79
  6. Step 6: Final answer
    x = 3,719.89

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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.