Home / 7,085.76-10,630.14-2,155.74

Finding the Fourth Proportional to 7,085.76, 10,630.14 and 2,155.74

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Solution

The fourth proportional to 7,085.76, 10,630.14 and 2,155.74 is: 3,234.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.76 : 10,630.14 = 2,155.74 : x
  2. Step 2: Convert to fraction form
    7,085.76/10,630.14 = 2,155.74/x
  3. Step 3: Cross multiply
    7,085.76x = 10,630.14 × 2,155.74
  4. Step 4: Simplify right side
    7,085.76x = 22,915,818.00
  5. Step 5: Solve for x
    x = 22,915,818.00/7,085.76
  6. Step 6: Final answer
    x = 3,234.07

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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.