Home / 1,655.05-2,484.20-1,261.39

Finding the Fourth Proportional to 1,655.05, 2,484.20 and 1,261.39

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Solution

The fourth proportional to 1,655.05, 2,484.20 and 1,261.39 is: 1,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,655.05 : 2,484.20 = 1,261.39 : x
  2. Step 2: Convert to fraction form
    1,655.05/2,484.20 = 1,261.39/x
  3. Step 3: Cross multiply
    1,655.05x = 2,484.20 × 1,261.39
  4. Step 4: Simplify right side
    1,655.05x = 3,133,545.04
  5. Step 5: Solve for x
    x = 3,133,545.04/1,655.05
  6. Step 6: Final answer
    x = 1,893.32

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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.