Home / 5,038.40-6,955.44-3,360.80

Finding the Fourth Proportional to 5,038.40, 6,955.44 and 3,360.80

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Solution

The fourth proportional to 5,038.40, 6,955.44 and 3,360.80 is: 4,639.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.40 : 6,955.44 = 3,360.80 : x
  2. Step 2: Convert to fraction form
    5,038.40/6,955.44 = 3,360.80/x
  3. Step 3: Cross multiply
    5,038.40x = 6,955.44 × 3,360.80
  4. Step 4: Simplify right side
    5,038.40x = 23,375,842.75
  5. Step 5: Solve for x
    x = 23,375,842.75/5,038.40
  6. Step 6: Final answer
    x = 4,639.54

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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.