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Finding the Fourth Proportional to 3,473.80, 5,210.71 and 876.74

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Solution

The fourth proportional to 3,473.80, 5,210.71 and 876.74 is: 1,315.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.80 : 5,210.71 = 876.74 : x
  2. Step 2: Convert to fraction form
    3,473.80/5,210.71 = 876.74/x
  3. Step 3: Cross multiply
    3,473.80x = 5,210.71 × 876.74
  4. Step 4: Simplify right side
    3,473.80x = 4,568,407.45
  5. Step 5: Solve for x
    x = 4,568,407.45/3,473.80
  6. Step 6: Final answer
    x = 1,315.11

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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.