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Finding the Fourth Proportional to 2,006.79, 3,010.19 and 1,031.55

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Solution

The fourth proportional to 2,006.79, 3,010.19 and 1,031.55 is: 1,547.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,006.79 : 3,010.19 = 1,031.55 : x
  2. Step 2: Convert to fraction form
    2,006.79/3,010.19 = 1,031.55/x
  3. Step 3: Cross multiply
    2,006.79x = 3,010.19 × 1,031.55
  4. Step 4: Simplify right side
    2,006.79x = 3,105,156.34
  5. Step 5: Solve for x
    x = 3,105,156.34/2,006.79
  6. Step 6: Final answer
    x = 1,547.33

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1.5x scale

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.