Home / 1,639.18-2,458.01-714.27

Finding the Fourth Proportional to 1,639.18, 2,458.01 and 714.27

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Solution

The fourth proportional to 1,639.18, 2,458.01 and 714.27 is: 1,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.18 : 2,458.01 = 714.27 : x
  2. Step 2: Convert to fraction form
    1,639.18/2,458.01 = 714.27/x
  3. Step 3: Cross multiply
    1,639.18x = 2,458.01 × 714.27
  4. Step 4: Simplify right side
    1,639.18x = 1,755,682.80
  5. Step 5: Solve for x
    x = 1,755,682.80/1,639.18
  6. Step 6: Final answer
    x = 1,071.07

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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.