Home / 1,607.13-2,216.85-977.22

Finding the Fourth Proportional to 1,607.13, 2,216.85 and 977.22

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Solution

The fourth proportional to 1,607.13, 2,216.85 and 977.22 is: 1,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.13 : 2,216.85 = 977.22 : x
  2. Step 2: Convert to fraction form
    1,607.13/2,216.85 = 977.22/x
  3. Step 3: Cross multiply
    1,607.13x = 2,216.85 × 977.22
  4. Step 4: Simplify right side
    1,607.13x = 2,166,350.16
  5. Step 5: Solve for x
    x = 2,166,350.16/1,607.13
  6. Step 6: Final answer
    x = 1,347.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.