Home / 1,417.27-2,125.78-492.67

Finding the Fourth Proportional to 1,417.27, 2,125.78 and 492.67

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Solution

The fourth proportional to 1,417.27, 2,125.78 and 492.67 is: 738.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.27 : 2,125.78 = 492.67 : x
  2. Step 2: Convert to fraction form
    1,417.27/2,125.78 = 492.67/x
  3. Step 3: Cross multiply
    1,417.27x = 2,125.78 × 492.67
  4. Step 4: Simplify right side
    1,417.27x = 1,047,296.17
  5. Step 5: Solve for x
    x = 1,047,296.17/1,417.27
  6. Step 6: Final answer
    x = 738.96

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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.