Home / 2,587.87-3,880.29-1,026.60

Finding the Fourth Proportional to 2,587.87, 3,880.29 and 1,026.60

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Solution

The fourth proportional to 2,587.87, 3,880.29 and 1,026.60 is: 1,539.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,587.87 : 3,880.29 = 1,026.60 : x
  2. Step 2: Convert to fraction form
    2,587.87/3,880.29 = 1,026.60/x
  3. Step 3: Cross multiply
    2,587.87x = 3,880.29 × 1,026.60
  4. Step 4: Simplify right side
    2,587.87x = 3,983,505.71
  5. Step 5: Solve for x
    x = 3,983,505.71/2,587.87
  6. Step 6: Final answer
    x = 1,539.30

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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.