Home / 2,712.68-4,048.23-2,421.08

Finding the Fourth Proportional to 2,712.68, 4,048.23 and 2,421.08

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Solution

The fourth proportional to 2,712.68, 4,048.23 and 2,421.08 is: 3,613.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.68 : 4,048.23 = 2,421.08 : x
  2. Step 2: Convert to fraction form
    2,712.68/4,048.23 = 2,421.08/x
  3. Step 3: Cross multiply
    2,712.68x = 4,048.23 × 2,421.08
  4. Step 4: Simplify right side
    2,712.68x = 9,801,088.69
  5. Step 5: Solve for x
    x = 9,801,088.69/2,712.68
  6. Step 6: Final answer
    x = 3,613.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.