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Finding the Fourth Proportional to 7,393.40, 10,202.84 and 4,036.20

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Solution

The fourth proportional to 7,393.40, 10,202.84 and 4,036.20 is: 5,569.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393.40 : 10,202.84 = 4,036.20 : x
  2. Step 2: Convert to fraction form
    7,393.40/10,202.84 = 4,036.20/x
  3. Step 3: Cross multiply
    7,393.40x = 10,202.84 × 4,036.20
  4. Step 4: Simplify right side
    7,393.40x = 41,180,702.81
  5. Step 5: Solve for x
    x = 41,180,702.81/7,393.40
  6. Step 6: Final answer
    x = 5,569.93

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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.