Home / 1,770.09-2,653.20-1,688.31

Finding the Fourth Proportional to 1,770.09, 2,653.20 and 1,688.31

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Solution

The fourth proportional to 1,770.09, 2,653.20 and 1,688.31 is: 2,530.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.09 : 2,653.20 = 1,688.31 : x
  2. Step 2: Convert to fraction form
    1,770.09/2,653.20 = 1,688.31/x
  3. Step 3: Cross multiply
    1,770.09x = 2,653.20 × 1,688.31
  4. Step 4: Simplify right side
    1,770.09x = 4,479,424.09
  5. Step 5: Solve for x
    x = 4,479,424.09/1,770.09
  6. Step 6: Final answer
    x = 2,530.62

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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.