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Finding the Fourth Proportional to 3,345.18, 5,017.56 and 880.16

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Solution

The fourth proportional to 3,345.18, 5,017.56 and 880.16 is: 1,320.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.18 : 5,017.56 = 880.16 : x
  2. Step 2: Convert to fraction form
    3,345.18/5,017.56 = 880.16/x
  3. Step 3: Cross multiply
    3,345.18x = 5,017.56 × 880.16
  4. Step 4: Simplify right side
    3,345.18x = 4,416,230.52
  5. Step 5: Solve for x
    x = 4,416,230.52/3,345.18
  6. Step 6: Final answer
    x = 1,320.18

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1.5x scale

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.