Home / 2,683.80-4,025.70-1,587.60

Finding the Fourth Proportional to 2,683.80, 4,025.70 and 1,587.60

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Solution

The fourth proportional to 2,683.80, 4,025.70 and 1,587.60 is: 2,381.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,683.80 : 4,025.70 = 1,587.60 : x
  2. Step 2: Convert to fraction form
    2,683.80/4,025.70 = 1,587.60/x
  3. Step 3: Cross multiply
    2,683.80x = 4,025.70 × 1,587.60
  4. Step 4: Simplify right side
    2,683.80x = 6,391,201.32
  5. Step 5: Solve for x
    x = 6,391,201.32/2,683.80
  6. Step 6: Final answer
    x = 2,381.40

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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.