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Finding the Fourth Proportional to 4,357.40, 6,535.80 and 1,395.80

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Solution

The fourth proportional to 4,357.40, 6,535.80 and 1,395.80 is: 2,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,357.40 : 6,535.80 = 1,395.80 : x
  2. Step 2: Convert to fraction form
    4,357.40/6,535.80 = 1,395.80/x
  3. Step 3: Cross multiply
    4,357.40x = 6,535.80 × 1,395.80
  4. Step 4: Simplify right side
    4,357.40x = 9,122,669.64
  5. Step 5: Solve for x
    x = 9,122,669.64/4,357.40
  6. Step 6: Final answer
    x = 2,093.60

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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.