Home / 2,148.50-2,966.35-1,487.39

Finding the Fourth Proportional to 2,148.50, 2,966.35 and 1,487.39

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Solution

The fourth proportional to 2,148.50, 2,966.35 and 1,487.39 is: 2,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,148.50 : 2,966.35 = 1,487.39 : x
  2. Step 2: Convert to fraction form
    2,148.50/2,966.35 = 1,487.39/x
  3. Step 3: Cross multiply
    2,148.50x = 2,966.35 × 1,487.39
  4. Step 4: Simplify right side
    2,148.50x = 4,412,107.72
  5. Step 5: Solve for x
    x = 4,412,107.72/2,148.50
  6. Step 6: Final answer
    x = 2,053.58

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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.