Home / 3,570.56-5,355.72-1,621.40

Finding the Fourth Proportional to 3,570.56, 5,355.72 and 1,621.40

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Solution

The fourth proportional to 3,570.56, 5,355.72 and 1,621.40 is: 2,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.56 : 5,355.72 = 1,621.40 : x
  2. Step 2: Convert to fraction form
    3,570.56/5,355.72 = 1,621.40/x
  3. Step 3: Cross multiply
    3,570.56x = 5,355.72 × 1,621.40
  4. Step 4: Simplify right side
    3,570.56x = 8,683,764.41
  5. Step 5: Solve for x
    x = 8,683,764.41/3,570.56
  6. Step 6: Final answer
    x = 2,432.05

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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.