Home / 2,170.04-3,254.08-688.84

Finding the Fourth Proportional to 2,170.04, 3,254.08 and 688.84

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Solution

The fourth proportional to 2,170.04, 3,254.08 and 688.84 is: 1,032.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.04 : 3,254.08 = 688.84 : x
  2. Step 2: Convert to fraction form
    2,170.04/3,254.08 = 688.84/x
  3. Step 3: Cross multiply
    2,170.04x = 3,254.08 × 688.84
  4. Step 4: Simplify right side
    2,170.04x = 2,241,528.89
  5. Step 5: Solve for x
    x = 2,241,528.89/2,170.04
  6. Step 6: Final answer
    x = 1,032.95

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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.