Home / 1,988.28-2,982.29-601.67

Finding the Fourth Proportional to 1,988.28, 2,982.29 and 601.67

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Solution

The fourth proportional to 1,988.28, 2,982.29 and 601.67 is: 902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988.28 : 2,982.29 = 601.67 : x
  2. Step 2: Convert to fraction form
    1,988.28/2,982.29 = 601.67/x
  3. Step 3: Cross multiply
    1,988.28x = 2,982.29 × 601.67
  4. Step 4: Simplify right side
    1,988.28x = 1,794,358.87
  5. Step 5: Solve for x
    x = 1,794,358.87/1,988.28
  6. Step 6: Final answer
    x = 902.47

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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.