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Finding the Fourth Proportional to 4,302.40, 6,446.40 and 4,043.20

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Solution

The fourth proportional to 4,302.40, 6,446.40 and 4,043.20 is: 6,058.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,302.40 : 6,446.40 = 4,043.20 : x
  2. Step 2: Convert to fraction form
    4,302.40/6,446.40 = 4,043.20/x
  3. Step 3: Cross multiply
    4,302.40x = 6,446.40 × 4,043.20
  4. Step 4: Simplify right side
    4,302.40x = 26,064,084.48
  5. Step 5: Solve for x
    x = 26,064,084.48/4,302.40
  6. Step 6: Final answer
    x = 6,058.03

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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.