Home / 5,710.20-7,880.40-3,226.20

Finding the Fourth Proportional to 5,710.20, 7,880.40 and 3,226.20

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Solution

The fourth proportional to 5,710.20, 7,880.40 and 3,226.20 is: 4,452.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,710.20 : 7,880.40 = 3,226.20 : x
  2. Step 2: Convert to fraction form
    5,710.20/7,880.40 = 3,226.20/x
  3. Step 3: Cross multiply
    5,710.20x = 7,880.40 × 3,226.20
  4. Step 4: Simplify right side
    5,710.20x = 25,423,746.48
  5. Step 5: Solve for x
    x = 25,423,746.48/5,710.20
  6. Step 6: Final answer
    x = 4,452.34

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.