Home / 2,729.40-4,088.70-1,573.80

Finding the Fourth Proportional to 2,729.40, 4,088.70 and 1,573.80

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Solution

The fourth proportional to 2,729.40, 4,088.70 and 1,573.80 is: 2,357.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,729.40 : 4,088.70 = 1,573.80 : x
  2. Step 2: Convert to fraction form
    2,729.40/4,088.70 = 1,573.80/x
  3. Step 3: Cross multiply
    2,729.40x = 4,088.70 × 1,573.80
  4. Step 4: Simplify right side
    2,729.40x = 6,434,796.06
  5. Step 5: Solve for x
    x = 6,434,796.06/2,729.40
  6. Step 6: Final answer
    x = 2,357.59

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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.