Home / 1,210.62-1,669.90-1,068.46

Finding the Fourth Proportional to 1,210.62, 1,669.90 and 1,068.46

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Solution

The fourth proportional to 1,210.62, 1,669.90 and 1,068.46 is: 1,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210.62 : 1,669.90 = 1,068.46 : x
  2. Step 2: Convert to fraction form
    1,210.62/1,669.90 = 1,068.46/x
  3. Step 3: Cross multiply
    1,210.62x = 1,669.90 × 1,068.46
  4. Step 4: Simplify right side
    1,210.62x = 1,784,221.35
  5. Step 5: Solve for x
    x = 1,784,221.35/1,210.62
  6. Step 6: Final answer
    x = 1,473.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.