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Finding the Fourth Proportional to 5,643.48, 8,460.18 and 2,868.60

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Solution

The fourth proportional to 5,643.48, 8,460.18 and 2,868.60 is: 4,300.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.48 : 8,460.18 = 2,868.60 : x
  2. Step 2: Convert to fraction form
    5,643.48/8,460.18 = 2,868.60/x
  3. Step 3: Cross multiply
    5,643.48x = 8,460.18 × 2,868.60
  4. Step 4: Simplify right side
    5,643.48x = 24,268,872.35
  5. Step 5: Solve for x
    x = 24,268,872.35/5,643.48
  6. Step 6: Final answer
    x = 4,300.34

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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.