Home / 5,160.29-7,740.39-1,264.70

Finding the Fourth Proportional to 5,160.29, 7,740.39 and 1,264.70

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Solution

The fourth proportional to 5,160.29, 7,740.39 and 1,264.70 is: 1,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.29 : 7,740.39 = 1,264.70 : x
  2. Step 2: Convert to fraction form
    5,160.29/7,740.39 = 1,264.70/x
  3. Step 3: Cross multiply
    5,160.29x = 7,740.39 × 1,264.70
  4. Step 4: Simplify right side
    5,160.29x = 9,789,271.23
  5. Step 5: Solve for x
    x = 9,789,271.23/5,160.29
  6. Step 6: Final answer
    x = 1,897.04

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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.