Home / 2,989.59-4,125.62-1,663.29

Finding the Fourth Proportional to 2,989.59, 4,125.62 and 1,663.29

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Solution

The fourth proportional to 2,989.59, 4,125.62 and 1,663.29 is: 2,295.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989.59 : 4,125.62 = 1,663.29 : x
  2. Step 2: Convert to fraction form
    2,989.59/4,125.62 = 1,663.29/x
  3. Step 3: Cross multiply
    2,989.59x = 4,125.62 × 1,663.29
  4. Step 4: Simplify right side
    2,989.59x = 6,862,094.17
  5. Step 5: Solve for x
    x = 6,862,094.17/2,989.59
  6. Step 6: Final answer
    x = 2,295.33

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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.