Home / 6,386.13-9,580.10-2,686.05

Finding the Fourth Proportional to 6,386.13, 9,580.10 and 2,686.05

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Solution

The fourth proportional to 6,386.13, 9,580.10 and 2,686.05 is: 4,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,386.13 : 9,580.10 = 2,686.05 : x
  2. Step 2: Convert to fraction form
    6,386.13/9,580.10 = 2,686.05/x
  3. Step 3: Cross multiply
    6,386.13x = 9,580.10 × 2,686.05
  4. Step 4: Simplify right side
    6,386.13x = 25,732,614.17
  5. Step 5: Solve for x
    x = 25,732,614.17/6,386.13
  6. Step 6: Final answer
    x = 4,029.45

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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.