Home / 2,101.90-2,897.62-1,437.70

Finding the Fourth Proportional to 2,101.90, 2,897.62 and 1,437.70

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Solution

The fourth proportional to 2,101.90, 2,897.62 and 1,437.70 is: 1,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.90 : 2,897.62 = 1,437.70 : x
  2. Step 2: Convert to fraction form
    2,101.90/2,897.62 = 1,437.70/x
  3. Step 3: Cross multiply
    2,101.90x = 2,897.62 × 1,437.70
  4. Step 4: Simplify right side
    2,101.90x = 4,165,908.27
  5. Step 5: Solve for x
    x = 4,165,908.27/2,101.90
  6. Step 6: Final answer
    x = 1,981.97

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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.