Home / 5,612.49-8,412.86-1,913.42

Finding the Fourth Proportional to 5,612.49, 8,412.86 and 1,913.42

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Solution

The fourth proportional to 5,612.49, 8,412.86 and 1,913.42 is: 2,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.49 : 8,412.86 = 1,913.42 : x
  2. Step 2: Convert to fraction form
    5,612.49/8,412.86 = 1,913.42/x
  3. Step 3: Cross multiply
    5,612.49x = 8,412.86 × 1,913.42
  4. Step 4: Simplify right side
    5,612.49x = 16,097,360.40
  5. Step 5: Solve for x
    x = 16,097,360.40/5,612.49
  6. Step 6: Final answer
    x = 2,868.13

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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.