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Finding the Fourth Proportional to 1,031.88, 1,537.88 and 1,030.28

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Solution

The fourth proportional to 1,031.88, 1,537.88 and 1,030.28 is: 1,535.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031.88 : 1,537.88 = 1,030.28 : x
  2. Step 2: Convert to fraction form
    1,031.88/1,537.88 = 1,030.28/x
  3. Step 3: Cross multiply
    1,031.88x = 1,537.88 × 1,030.28
  4. Step 4: Simplify right side
    1,031.88x = 1,584,447.01
  5. Step 5: Solve for x
    x = 1,584,447.01/1,031.88
  6. Step 6: Final answer
    x = 1,535.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.