Home / 1,439.79-2,159.75-452.67

Finding the Fourth Proportional to 1,439.79, 2,159.75 and 452.67

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Solution

The fourth proportional to 1,439.79, 2,159.75 and 452.67 is: 679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439.79 : 2,159.75 = 452.67 : x
  2. Step 2: Convert to fraction form
    1,439.79/2,159.75 = 452.67/x
  3. Step 3: Cross multiply
    1,439.79x = 2,159.75 × 452.67
  4. Step 4: Simplify right side
    1,439.79x = 977,654.03
  5. Step 5: Solve for x
    x = 977,654.03/1,439.79
  6. Step 6: Final answer
    x = 679.03

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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.