Home / 3,747.65-5,621.61-1,407.42

Finding the Fourth Proportional to 3,747.65, 5,621.61 and 1,407.42

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Solution

The fourth proportional to 3,747.65, 5,621.61 and 1,407.42 is: 2,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.65 : 5,621.61 = 1,407.42 : x
  2. Step 2: Convert to fraction form
    3,747.65/5,621.61 = 1,407.42/x
  3. Step 3: Cross multiply
    3,747.65x = 5,621.61 × 1,407.42
  4. Step 4: Simplify right side
    3,747.65x = 7,911,966.35
  5. Step 5: Solve for x
    x = 7,911,966.35/3,747.65
  6. Step 6: Final answer
    x = 2,111.18

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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.