Home / 1,416.95-2,115.87-1,157.46

Finding the Fourth Proportional to 1,416.95, 2,115.87 and 1,157.46

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Solution

The fourth proportional to 1,416.95, 2,115.87 and 1,157.46 is: 1,728.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.95 : 2,115.87 = 1,157.46 : x
  2. Step 2: Convert to fraction form
    1,416.95/2,115.87 = 1,157.46/x
  3. Step 3: Cross multiply
    1,416.95x = 2,115.87 × 1,157.46
  4. Step 4: Simplify right side
    1,416.95x = 2,449,018.52
  5. Step 5: Solve for x
    x = 2,449,018.52/1,416.95
  6. Step 6: Final answer
    x = 1,728.38

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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.