Home / 2,225.45-3,069.96-1,386.02

Finding the Fourth Proportional to 2,225.45, 3,069.96 and 1,386.02

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Solution

The fourth proportional to 2,225.45, 3,069.96 and 1,386.02 is: 1,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225.45 : 3,069.96 = 1,386.02 : x
  2. Step 2: Convert to fraction form
    2,225.45/3,069.96 = 1,386.02/x
  3. Step 3: Cross multiply
    2,225.45x = 3,069.96 × 1,386.02
  4. Step 4: Simplify right side
    2,225.45x = 4,255,025.96
  5. Step 5: Solve for x
    x = 4,255,025.96/2,225.45
  6. Step 6: Final answer
    x = 1,911.98

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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.