Home / 1,755.15-2,620.28-1,560.75

Finding the Fourth Proportional to 1,755.15, 2,620.28 and 1,560.75

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Solution

The fourth proportional to 1,755.15, 2,620.28 and 1,560.75 is: 2,330.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755.15 : 2,620.28 = 1,560.75 : x
  2. Step 2: Convert to fraction form
    1,755.15/2,620.28 = 1,560.75/x
  3. Step 3: Cross multiply
    1,755.15x = 2,620.28 × 1,560.75
  4. Step 4: Simplify right side
    1,755.15x = 4,089,594.21
  5. Step 5: Solve for x
    x = 4,089,594.21/1,755.15
  6. Step 6: Final answer
    x = 2,330.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.