Home / 1,416.36-2,122.50-977.16

Finding the Fourth Proportional to 1,416.36, 2,122.50 and 977.16

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Solution

The fourth proportional to 1,416.36, 2,122.50 and 977.16 is: 1,464.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,416.36 : 2,122.50 = 977.16 : x
  2. Step 2: Convert to fraction form
    1,416.36/2,122.50 = 977.16/x
  3. Step 3: Cross multiply
    1,416.36x = 2,122.50 × 977.16
  4. Step 4: Simplify right side
    1,416.36x = 2,074,022.10
  5. Step 5: Solve for x
    x = 2,074,022.10/1,416.36
  6. Step 6: Final answer
    x = 1,464.33

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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.