Home / 1,510.24-2,082.09-1,291.54

Finding the Fourth Proportional to 1,510.24, 2,082.09 and 1,291.54

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Solution

The fourth proportional to 1,510.24, 2,082.09 and 1,291.54 is: 1,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.24 : 2,082.09 = 1,291.54 : x
  2. Step 2: Convert to fraction form
    1,510.24/2,082.09 = 1,291.54/x
  3. Step 3: Cross multiply
    1,510.24x = 2,082.09 × 1,291.54
  4. Step 4: Simplify right side
    1,510.24x = 2,689,102.52
  5. Step 5: Solve for x
    x = 2,689,102.52/1,510.24
  6. Step 6: Final answer
    x = 1,780.58

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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.