Home / 1,984.36-2,737.40-1,611.76

Finding the Fourth Proportional to 1,984.36, 2,737.40 and 1,611.76

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Solution

The fourth proportional to 1,984.36, 2,737.40 and 1,611.76 is: 2,223.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984.36 : 2,737.40 = 1,611.76 : x
  2. Step 2: Convert to fraction form
    1,984.36/2,737.40 = 1,611.76/x
  3. Step 3: Cross multiply
    1,984.36x = 2,737.40 × 1,611.76
  4. Step 4: Simplify right side
    1,984.36x = 4,412,031.82
  5. Step 5: Solve for x
    x = 4,412,031.82/1,984.36
  6. Step 6: Final answer
    x = 2,223.40

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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.