Home / 2,603.12-3,591.20-1,893.40

Finding the Fourth Proportional to 2,603.12, 3,591.20 and 1,893.40

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Solution

The fourth proportional to 2,603.12, 3,591.20 and 1,893.40 is: 2,612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603.12 : 3,591.20 = 1,893.40 : x
  2. Step 2: Convert to fraction form
    2,603.12/3,591.20 = 1,893.40/x
  3. Step 3: Cross multiply
    2,603.12x = 3,591.20 × 1,893.40
  4. Step 4: Simplify right side
    2,603.12x = 6,799,573.84
  5. Step 5: Solve for x
    x = 6,799,573.84/2,603.12
  6. Step 6: Final answer
    x = 2,612.09

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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.