Home / 1,556.91-2,330.28-1,145.88

Finding the Fourth Proportional to 1,556.91, 2,330.28 and 1,145.88

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Solution

The fourth proportional to 1,556.91, 2,330.28 and 1,145.88 is: 1,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,556.91 : 2,330.28 = 1,145.88 : x
  2. Step 2: Convert to fraction form
    1,556.91/2,330.28 = 1,145.88/x
  3. Step 3: Cross multiply
    1,556.91x = 2,330.28 × 1,145.88
  4. Step 4: Simplify right side
    1,556.91x = 2,670,221.25
  5. Step 5: Solve for x
    x = 2,670,221.25/1,556.91
  6. Step 6: Final answer
    x = 1,715.08

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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.