Home / 2,445.75-3,374.11-1,607.40

Finding the Fourth Proportional to 2,445.75, 3,374.11 and 1,607.40

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Solution

The fourth proportional to 2,445.75, 3,374.11 and 1,607.40 is: 2,217.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445.75 : 3,374.11 = 1,607.40 : x
  2. Step 2: Convert to fraction form
    2,445.75/3,374.11 = 1,607.40/x
  3. Step 3: Cross multiply
    2,445.75x = 3,374.11 × 1,607.40
  4. Step 4: Simplify right side
    2,445.75x = 5,423,544.41
  5. Step 5: Solve for x
    x = 5,423,544.41/2,445.75
  6. Step 6: Final answer
    x = 2,217.54

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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.