Home / 2,118.54-3,178.13-1,537.93

Finding the Fourth Proportional to 2,118.54, 3,178.13 and 1,537.93

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Solution

The fourth proportional to 2,118.54, 3,178.13 and 1,537.93 is: 2,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118.54 : 3,178.13 = 1,537.93 : x
  2. Step 2: Convert to fraction form
    2,118.54/3,178.13 = 1,537.93/x
  3. Step 3: Cross multiply
    2,118.54x = 3,178.13 × 1,537.93
  4. Step 4: Simplify right side
    2,118.54x = 4,887,741.47
  5. Step 5: Solve for x
    x = 4,887,741.47/2,118.54
  6. Step 6: Final answer
    x = 2,307.13

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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.