Home / 2,315.47-3,195.36-1,267.53

Finding the Fourth Proportional to 2,315.47, 3,195.36 and 1,267.53

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Solution

The fourth proportional to 2,315.47, 3,195.36 and 1,267.53 is: 1,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,315.47 : 3,195.36 = 1,267.53 : x
  2. Step 2: Convert to fraction form
    2,315.47/3,195.36 = 1,267.53/x
  3. Step 3: Cross multiply
    2,315.47x = 3,195.36 × 1,267.53
  4. Step 4: Simplify right side
    2,315.47x = 4,050,214.66
  5. Step 5: Solve for x
    x = 4,050,214.66/2,315.47
  6. Step 6: Final answer
    x = 1,749.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.