Home / 1,529.07-2,108.82-1,031.06

Finding the Fourth Proportional to 1,529.07, 2,108.82 and 1,031.06

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Solution

The fourth proportional to 1,529.07, 2,108.82 and 1,031.06 is: 1,421.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.07 : 2,108.82 = 1,031.06 : x
  2. Step 2: Convert to fraction form
    1,529.07/2,108.82 = 1,031.06/x
  3. Step 3: Cross multiply
    1,529.07x = 2,108.82 × 1,031.06
  4. Step 4: Simplify right side
    1,529.07x = 2,174,319.95
  5. Step 5: Solve for x
    x = 2,174,319.95/1,529.07
  6. Step 6: Final answer
    x = 1,421.99

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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.