Home / 3,539.84-5,312.30-2,854.78

Finding the Fourth Proportional to 3,539.84, 5,312.30 and 2,854.78

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Solution

The fourth proportional to 3,539.84, 5,312.30 and 2,854.78 is: 4,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.84 : 5,312.30 = 2,854.78 : x
  2. Step 2: Convert to fraction form
    3,539.84/5,312.30 = 2,854.78/x
  3. Step 3: Cross multiply
    3,539.84x = 5,312.30 × 2,854.78
  4. Step 4: Simplify right side
    3,539.84x = 15,165,420.24
  5. Step 5: Solve for x
    x = 15,165,420.24/3,539.84
  6. Step 6: Final answer
    x = 4,284.22

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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.