Home / 1,770.71-2,444.27-1,239.62

Finding the Fourth Proportional to 1,770.71, 2,444.27 and 1,239.62

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Solution

The fourth proportional to 1,770.71, 2,444.27 and 1,239.62 is: 1,711.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.71 : 2,444.27 = 1,239.62 : x
  2. Step 2: Convert to fraction form
    1,770.71/2,444.27 = 1,239.62/x
  3. Step 3: Cross multiply
    1,770.71x = 2,444.27 × 1,239.62
  4. Step 4: Simplify right side
    1,770.71x = 3,029,947.56
  5. Step 5: Solve for x
    x = 3,029,947.56/1,770.71
  6. Step 6: Final answer
    x = 1,711.15

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1.5x scale

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.