Home / 7,386.72-11,077.66-2,455

Finding the Fourth Proportional to 7,386.72, 11,077.66 and 2,455

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Solution

The fourth proportional to 7,386.72, 11,077.66 and 2,455 is: 3,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,386.72 : 11,077.66 = 2,455 : x
  2. Step 2: Convert to fraction form
    7,386.72/11,077.66 = 2,455/x
  3. Step 3: Cross multiply
    7,386.72x = 11,077.66 × 2,455
  4. Step 4: Simplify right side
    7,386.72x = 27,195,655.30
  5. Step 5: Solve for x
    x = 27,195,655.30/7,386.72
  6. Step 6: Final answer
    x = 3,681.70

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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.