Home / 1,320.84-1,971.77-1,148.04

Finding the Fourth Proportional to 1,320.84, 1,971.77 and 1,148.04

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Solution

The fourth proportional to 1,320.84, 1,971.77 and 1,148.04 is: 1,713.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320.84 : 1,971.77 = 1,148.04 : x
  2. Step 2: Convert to fraction form
    1,320.84/1,971.77 = 1,148.04/x
  3. Step 3: Cross multiply
    1,320.84x = 1,971.77 × 1,148.04
  4. Step 4: Simplify right side
    1,320.84x = 2,263,670.83
  5. Step 5: Solve for x
    x = 2,263,670.83/1,320.84
  6. Step 6: Final answer
    x = 1,713.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.