Home / 7,707.72-11,560.69-2,161.51

Finding the Fourth Proportional to 7,707.72, 11,560.69 and 2,161.51

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Solution

The fourth proportional to 7,707.72, 11,560.69 and 2,161.51 is: 3,242.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.72 : 11,560.69 = 2,161.51 : x
  2. Step 2: Convert to fraction form
    7,707.72/11,560.69 = 2,161.51/x
  3. Step 3: Cross multiply
    7,707.72x = 11,560.69 × 2,161.51
  4. Step 4: Simplify right side
    7,707.72x = 24,988,547.04
  5. Step 5: Solve for x
    x = 24,988,547.04/7,707.72
  6. Step 6: Final answer
    x = 3,242.02

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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.