Home / 1,835.20-2,756.10-1,608.40

Finding the Fourth Proportional to 1,835.20, 2,756.10 and 1,608.40

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Solution

The fourth proportional to 1,835.20, 2,756.10 and 1,608.40 is: 2,415.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.20 : 2,756.10 = 1,608.40 : x
  2. Step 2: Convert to fraction form
    1,835.20/2,756.10 = 1,608.40/x
  3. Step 3: Cross multiply
    1,835.20x = 2,756.10 × 1,608.40
  4. Step 4: Simplify right side
    1,835.20x = 4,432,911.24
  5. Step 5: Solve for x
    x = 4,432,911.24/1,835.20
  6. Step 6: Final answer
    x = 2,415.49

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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.