Home / 1,711.20-2,559.78-1,437.60

Finding the Fourth Proportional to 1,711.20, 2,559.78 and 1,437.60

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Solution

The fourth proportional to 1,711.20, 2,559.78 and 1,437.60 is: 2,150.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,711.20 : 2,559.78 = 1,437.60 : x
  2. Step 2: Convert to fraction form
    1,711.20/2,559.78 = 1,437.60/x
  3. Step 3: Cross multiply
    1,711.20x = 2,559.78 × 1,437.60
  4. Step 4: Simplify right side
    1,711.20x = 3,679,939.73
  5. Step 5: Solve for x
    x = 3,679,939.73/1,711.20
  6. Step 6: Final answer
    x = 2,150.50

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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.