Home / 4,070.87-5,618.69-2,478.04

Finding the Fourth Proportional to 4,070.87, 5,618.69 and 2,478.04

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Solution

The fourth proportional to 4,070.87, 5,618.69 and 2,478.04 is: 3,420.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,070.87 : 5,618.69 = 2,478.04 : x
  2. Step 2: Convert to fraction form
    4,070.87/5,618.69 = 2,478.04/x
  3. Step 3: Cross multiply
    4,070.87x = 5,618.69 × 2,478.04
  4. Step 4: Simplify right side
    4,070.87x = 13,923,312.13
  5. Step 5: Solve for x
    x = 13,923,312.13/4,070.87
  6. Step 6: Final answer
    x = 3,420.23

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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.