Home / 1,528.18-2,106.84-1,214.48

Finding the Fourth Proportional to 1,528.18, 2,106.84 and 1,214.48

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Solution

The fourth proportional to 1,528.18, 2,106.84 and 1,214.48 is: 1,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528.18 : 2,106.84 = 1,214.48 : x
  2. Step 2: Convert to fraction form
    1,528.18/2,106.84 = 1,214.48/x
  3. Step 3: Cross multiply
    1,528.18x = 2,106.84 × 1,214.48
  4. Step 4: Simplify right side
    1,528.18x = 2,558,724.86
  5. Step 5: Solve for x
    x = 2,558,724.86/1,528.18
  6. Step 6: Final answer
    x = 1,674.36

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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.