Home / 1,417.18-2,125.68-492.76

Finding the Fourth Proportional to 1,417.18, 2,125.68 and 492.76

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Solution

The fourth proportional to 1,417.18, 2,125.68 and 492.76 is: 739.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.18 : 2,125.68 = 492.76 : x
  2. Step 2: Convert to fraction form
    1,417.18/2,125.68 = 492.76/x
  3. Step 3: Cross multiply
    1,417.18x = 2,125.68 × 492.76
  4. Step 4: Simplify right side
    1,417.18x = 1,047,450.08
  5. Step 5: Solve for x
    x = 1,047,450.08/1,417.18
  6. Step 6: Final answer
    x = 739.11

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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.