Home / 3,031.07-4,543.85-2,107.05

Finding the Fourth Proportional to 3,031.07, 4,543.85 and 2,107.05

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Solution

The fourth proportional to 3,031.07, 4,543.85 and 2,107.05 is: 3,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.07 : 4,543.85 = 2,107.05 : x
  2. Step 2: Convert to fraction form
    3,031.07/4,543.85 = 2,107.05/x
  3. Step 3: Cross multiply
    3,031.07x = 4,543.85 × 2,107.05
  4. Step 4: Simplify right side
    3,031.07x = 9,574,108.61
  5. Step 5: Solve for x
    x = 9,574,108.61/3,031.07
  6. Step 6: Final answer
    x = 3,158.66

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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.