Home / 2,987.04-4,479.96-2,838.85

Finding the Fourth Proportional to 2,987.04, 4,479.96 and 2,838.85

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Solution

The fourth proportional to 2,987.04, 4,479.96 and 2,838.85 is: 4,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,987.04 : 4,479.96 = 2,838.85 : x
  2. Step 2: Convert to fraction form
    2,987.04/4,479.96 = 2,838.85/x
  3. Step 3: Cross multiply
    2,987.04x = 4,479.96 × 2,838.85
  4. Step 4: Simplify right side
    2,987.04x = 12,717,934.45
  5. Step 5: Solve for x
    x = 12,717,934.45/2,987.04
  6. Step 6: Final answer
    x = 4,257.70

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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.