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Finding the Fourth Proportional to 2,210.76, 3,315.74 and 894.45

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Solution

The fourth proportional to 2,210.76, 3,315.74 and 894.45 is: 1,341.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.76 : 3,315.74 = 894.45 : x
  2. Step 2: Convert to fraction form
    2,210.76/3,315.74 = 894.45/x
  3. Step 3: Cross multiply
    2,210.76x = 3,315.74 × 894.45
  4. Step 4: Simplify right side
    2,210.76x = 2,965,763.64
  5. Step 5: Solve for x
    x = 2,965,763.64/2,210.76
  6. Step 6: Final answer
    x = 1,341.51

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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.