Home / 4,025.60-6,038.40-2,790.40

Finding the Fourth Proportional to 4,025.60, 6,038.40 and 2,790.40

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Solution

The fourth proportional to 4,025.60, 6,038.40 and 2,790.40 is: 4,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,025.60 : 6,038.40 = 2,790.40 : x
  2. Step 2: Convert to fraction form
    4,025.60/6,038.40 = 2,790.40/x
  3. Step 3: Cross multiply
    4,025.60x = 6,038.40 × 2,790.40
  4. Step 4: Simplify right side
    4,025.60x = 16,849,551.36
  5. Step 5: Solve for x
    x = 16,849,551.36/4,025.60
  6. Step 6: Final answer
    x = 4,185.60

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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.