Home / 2,101.48-2,898.98-1,403.88

Finding the Fourth Proportional to 2,101.48, 2,898.98 and 1,403.88

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Solution

The fourth proportional to 2,101.48, 2,898.98 and 1,403.88 is: 1,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101.48 : 2,898.98 = 1,403.88 : x
  2. Step 2: Convert to fraction form
    2,101.48/2,898.98 = 1,403.88/x
  3. Step 3: Cross multiply
    2,101.48x = 2,898.98 × 1,403.88
  4. Step 4: Simplify right side
    2,101.48x = 4,069,820.04
  5. Step 5: Solve for x
    x = 4,069,820.04/2,101.48
  6. Step 6: Final answer
    x = 1,936.64

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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.