Home / 3,505.40-4,824.78-3,303.80

Finding the Fourth Proportional to 3,505.40, 4,824.78 and 3,303.80

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Solution

The fourth proportional to 3,505.40, 4,824.78 and 3,303.80 is: 4,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.40 : 4,824.78 = 3,303.80 : x
  2. Step 2: Convert to fraction form
    3,505.40/4,824.78 = 3,303.80/x
  3. Step 3: Cross multiply
    3,505.40x = 4,824.78 × 3,303.80
  4. Step 4: Simplify right side
    3,505.40x = 15,940,108.16
  5. Step 5: Solve for x
    x = 15,940,108.16/3,505.40
  6. Step 6: Final answer
    x = 4,547.30

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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.