Home / 4,815.85-6,642.30-3,045.74

Finding the Fourth Proportional to 4,815.85, 6,642.30 and 3,045.74

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Solution

The fourth proportional to 4,815.85, 6,642.30 and 3,045.74 is: 4,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.85 : 6,642.30 = 3,045.74 : x
  2. Step 2: Convert to fraction form
    4,815.85/6,642.30 = 3,045.74/x
  3. Step 3: Cross multiply
    4,815.85x = 6,642.30 × 3,045.74
  4. Step 4: Simplify right side
    4,815.85x = 20,230,718.80
  5. Step 5: Solve for x
    x = 20,230,718.80/4,815.85
  6. Step 6: Final answer
    x = 4,200.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.