Home / 2,990.14-4,126.52-1,663.93

Finding the Fourth Proportional to 2,990.14, 4,126.52 and 1,663.93

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Solution

The fourth proportional to 2,990.14, 4,126.52 and 1,663.93 is: 2,296.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.14 : 4,126.52 = 1,663.93 : x
  2. Step 2: Convert to fraction form
    2,990.14/4,126.52 = 1,663.93/x
  3. Step 3: Cross multiply
    2,990.14x = 4,126.52 × 1,663.93
  4. Step 4: Simplify right side
    2,990.14x = 6,866,240.42
  5. Step 5: Solve for x
    x = 6,866,240.42/2,990.14
  6. Step 6: Final answer
    x = 2,296.29

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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.