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Finding the Fourth Proportional to 3,155.91, 4,703.10 and 3,060.90

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Solution

The fourth proportional to 3,155.91, 4,703.10 and 3,060.90 is: 4,561.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.91 : 4,703.10 = 3,060.90 : x
  2. Step 2: Convert to fraction form
    3,155.91/4,703.10 = 3,060.90/x
  3. Step 3: Cross multiply
    3,155.91x = 4,703.10 × 3,060.90
  4. Step 4: Simplify right side
    3,155.91x = 14,395,718.79
  5. Step 5: Solve for x
    x = 14,395,718.79/3,155.91
  6. Step 6: Final answer
    x = 4,561.51

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1.5x scale

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.