Home / 1,989.62-2,983.46-602.70

Finding the Fourth Proportional to 1,989.62, 2,983.46 and 602.70

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Solution

The fourth proportional to 1,989.62, 2,983.46 and 602.70 is: 903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.62 : 2,983.46 = 602.70 : x
  2. Step 2: Convert to fraction form
    1,989.62/2,983.46 = 602.70/x
  3. Step 3: Cross multiply
    1,989.62x = 2,983.46 × 602.70
  4. Step 4: Simplify right side
    1,989.62x = 1,798,131.34
  5. Step 5: Solve for x
    x = 1,798,131.34/1,989.62
  6. Step 6: Final answer
    x = 903.76

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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.