Home / 5,535.48-7,639.80-3,440.28

Finding the Fourth Proportional to 5,535.48, 7,639.80 and 3,440.28

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Solution

The fourth proportional to 5,535.48, 7,639.80 and 3,440.28 is: 4,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,535.48 : 7,639.80 = 3,440.28 : x
  2. Step 2: Convert to fraction form
    5,535.48/7,639.80 = 3,440.28/x
  3. Step 3: Cross multiply
    5,535.48x = 7,639.80 × 3,440.28
  4. Step 4: Simplify right side
    5,535.48x = 26,283,051.14
  5. Step 5: Solve for x
    x = 26,283,051.14/5,535.48
  6. Step 6: Final answer
    x = 4,748.11

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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.