Home / 1,758.68-2,427.30-1,129.99

Finding the Fourth Proportional to 1,758.68, 2,427.30 and 1,129.99

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Solution

The fourth proportional to 1,758.68, 2,427.30 and 1,129.99 is: 1,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.68 : 2,427.30 = 1,129.99 : x
  2. Step 2: Convert to fraction form
    1,758.68/2,427.30 = 1,129.99/x
  3. Step 3: Cross multiply
    1,758.68x = 2,427.30 × 1,129.99
  4. Step 4: Simplify right side
    1,758.68x = 2,742,824.73
  5. Step 5: Solve for x
    x = 2,742,824.73/1,758.68
  6. Step 6: Final answer
    x = 1,559.60

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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.