Home / 2,712.60-4,068.90-1,619.10

Finding the Fourth Proportional to 2,712.60, 4,068.90 and 1,619.10

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Solution

The fourth proportional to 2,712.60, 4,068.90 and 1,619.10 is: 2,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.60 : 4,068.90 = 1,619.10 : x
  2. Step 2: Convert to fraction form
    2,712.60/4,068.90 = 1,619.10/x
  3. Step 3: Cross multiply
    2,712.60x = 4,068.90 × 1,619.10
  4. Step 4: Simplify right side
    2,712.60x = 6,587,955.99
  5. Step 5: Solve for x
    x = 6,587,955.99/2,712.60
  6. Step 6: Final answer
    x = 2,428.65

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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.