Home / 1,421.96-2,133.75-1,410.98

Finding the Fourth Proportional to 1,421.96, 2,133.75 and 1,410.98

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Solution

The fourth proportional to 1,421.96, 2,133.75 and 1,410.98 is: 2,117.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421.96 : 2,133.75 = 1,410.98 : x
  2. Step 2: Convert to fraction form
    1,421.96/2,133.75 = 1,410.98/x
  3. Step 3: Cross multiply
    1,421.96x = 2,133.75 × 1,410.98
  4. Step 4: Simplify right side
    1,421.96x = 3,010,678.58
  5. Step 5: Solve for x
    x = 3,010,678.58/1,421.96
  6. Step 6: Final answer
    x = 2,117.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.