Home / 4,811.12-6,639.36-2,603.12

Finding the Fourth Proportional to 4,811.12, 6,639.36 and 2,603.12

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Solution

The fourth proportional to 4,811.12, 6,639.36 and 2,603.12 is: 3,592.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,811.12 : 6,639.36 = 2,603.12 : x
  2. Step 2: Convert to fraction form
    4,811.12/6,639.36 = 2,603.12/x
  3. Step 3: Cross multiply
    4,811.12x = 6,639.36 × 2,603.12
  4. Step 4: Simplify right side
    4,811.12x = 17,283,050.80
  5. Step 5: Solve for x
    x = 17,283,050.80/4,811.12
  6. Step 6: Final answer
    x = 3,592.31

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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.