Home / 4,070.99-5,618.22-2,478.80

Finding the Fourth Proportional to 4,070.99, 5,618.22 and 2,478.80

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Solution

The fourth proportional to 4,070.99, 5,618.22 and 2,478.80 is: 3,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,070.99 : 5,618.22 = 2,478.80 : x
  2. Step 2: Convert to fraction form
    4,070.99/5,618.22 = 2,478.80/x
  3. Step 3: Cross multiply
    4,070.99x = 5,618.22 × 2,478.80
  4. Step 4: Simplify right side
    4,070.99x = 13,926,443.74
  5. Step 5: Solve for x
    x = 13,926,443.74/4,070.99
  6. Step 6: Final answer
    x = 3,420.90

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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.