Home / 1,359.84-2,031.36-1,141.20

Finding the Fourth Proportional to 1,359.84, 2,031.36 and 1,141.20

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Solution

The fourth proportional to 1,359.84, 2,031.36 and 1,141.20 is: 1,704.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359.84 : 2,031.36 = 1,141.20 : x
  2. Step 2: Convert to fraction form
    1,359.84/2,031.36 = 1,141.20/x
  3. Step 3: Cross multiply
    1,359.84x = 2,031.36 × 1,141.20
  4. Step 4: Simplify right side
    1,359.84x = 2,318,188.03
  5. Step 5: Solve for x
    x = 2,318,188.03/1,359.84
  6. Step 6: Final answer
    x = 1,704.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.