Home / 2,445.20-3,373.68-1,605.68

Finding the Fourth Proportional to 2,445.20, 3,373.68 and 1,605.68

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Solution

The fourth proportional to 2,445.20, 3,373.68 and 1,605.68 is: 2,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.20 : 3,373.68 = 1,605.68 : x
  2. Step 2: Convert to fraction form
    2,445.20/3,373.68 = 1,605.68/x
  3. Step 3: Cross multiply
    2,445.20x = 3,373.68 × 1,605.68
  4. Step 4: Simplify right side
    2,445.20x = 5,417,050.50
  5. Step 5: Solve for x
    x = 5,417,050.50/2,445.20
  6. Step 6: Final answer
    x = 2,215.38

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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.