Home / 7,707.62-11,560.98-2,085.20

Finding the Fourth Proportional to 7,707.62, 11,560.98 and 2,085.20

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Solution

The fourth proportional to 7,707.62, 11,560.98 and 2,085.20 is: 3,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,707.62 : 11,560.98 = 2,085.20 : x
  2. Step 2: Convert to fraction form
    7,707.62/11,560.98 = 2,085.20/x
  3. Step 3: Cross multiply
    7,707.62x = 11,560.98 × 2,085.20
  4. Step 4: Simplify right side
    7,707.62x = 24,106,955.50
  5. Step 5: Solve for x
    x = 24,106,955.50/7,707.62
  6. Step 6: Final answer
    x = 3,127.68

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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.