Home / 2,492.12-3,438.06-1,607.60

Finding the Fourth Proportional to 2,492.12, 3,438.06 and 1,607.60

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Solution

The fourth proportional to 2,492.12, 3,438.06 and 1,607.60 is: 2,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,492.12 : 3,438.06 = 1,607.60 : x
  2. Step 2: Convert to fraction form
    2,492.12/3,438.06 = 1,607.60/x
  3. Step 3: Cross multiply
    2,492.12x = 3,438.06 × 1,607.60
  4. Step 4: Simplify right side
    2,492.12x = 5,527,025.26
  5. Step 5: Solve for x
    x = 5,527,025.26/2,492.12
  6. Step 6: Final answer
    x = 2,217.80

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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.