Home / 3,747.58-5,621.51-1,407.35

Finding the Fourth Proportional to 3,747.58, 5,621.51 and 1,407.35

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Solution

The fourth proportional to 3,747.58, 5,621.51 and 1,407.35 is: 2,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.58 : 5,621.51 = 1,407.35 : x
  2. Step 2: Convert to fraction form
    3,747.58/5,621.51 = 1,407.35/x
  3. Step 3: Cross multiply
    3,747.58x = 5,621.51 × 1,407.35
  4. Step 4: Simplify right side
    3,747.58x = 7,911,432.10
  5. Step 5: Solve for x
    x = 7,911,432.10/3,747.58
  6. Step 6: Final answer
    x = 2,111.08

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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.