Home / 3,520.48-5,281.29-1,329.40

Finding the Fourth Proportional to 3,520.48, 5,281.29 and 1,329.40

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Solution

The fourth proportional to 3,520.48, 5,281.29 and 1,329.40 is: 1,994.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.48 : 5,281.29 = 1,329.40 : x
  2. Step 2: Convert to fraction form
    3,520.48/5,281.29 = 1,329.40/x
  3. Step 3: Cross multiply
    3,520.48x = 5,281.29 × 1,329.40
  4. Step 4: Simplify right side
    3,520.48x = 7,020,946.93
  5. Step 5: Solve for x
    x = 7,020,946.93/3,520.48
  6. Step 6: Final answer
    x = 1,994.32

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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.