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Finding the Fourth Proportional to 4,689.07, 7,030.86 and 1,767.61

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Solution

The fourth proportional to 4,689.07, 7,030.86 and 1,767.61 is: 2,650.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.07 : 7,030.86 = 1,767.61 : x
  2. Step 2: Convert to fraction form
    4,689.07/7,030.86 = 1,767.61/x
  3. Step 3: Cross multiply
    4,689.07x = 7,030.86 × 1,767.61
  4. Step 4: Simplify right side
    4,689.07x = 12,427,818.44
  5. Step 5: Solve for x
    x = 12,427,818.44/4,689.07
  6. Step 6: Final answer
    x = 2,650.38

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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.