Home / 3,030.80-4,543.88-2,721.72

Finding the Fourth Proportional to 3,030.80, 4,543.88 and 2,721.72

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Solution

The fourth proportional to 3,030.80, 4,543.88 and 2,721.72 is: 4,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.80 : 4,543.88 = 2,721.72 : x
  2. Step 2: Convert to fraction form
    3,030.80/4,543.88 = 2,721.72/x
  3. Step 3: Cross multiply
    3,030.80x = 4,543.88 × 2,721.72
  4. Step 4: Simplify right side
    3,030.80x = 12,367,155.47
  5. Step 5: Solve for x
    x = 12,367,155.47/3,030.80
  6. Step 6: Final answer
    x = 4,080.50

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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.