Home / 3,520.83-5,281.44-1,055.40

Finding the Fourth Proportional to 3,520.83, 5,281.44 and 1,055.40

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Solution

The fourth proportional to 3,520.83, 5,281.44 and 1,055.40 is: 1,583.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.83 : 5,281.44 = 1,055.40 : x
  2. Step 2: Convert to fraction form
    3,520.83/5,281.44 = 1,055.40/x
  3. Step 3: Cross multiply
    3,520.83x = 5,281.44 × 1,055.40
  4. Step 4: Simplify right side
    3,520.83x = 5,574,031.78
  5. Step 5: Solve for x
    x = 5,574,031.78/3,520.83
  6. Step 6: Final answer
    x = 1,583.16

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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.