Home / 2,110.15-3,165.28-649.32

Finding the Fourth Proportional to 2,110.15, 3,165.28 and 649.32

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Solution

The fourth proportional to 2,110.15, 3,165.28 and 649.32 is: 973.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.15 : 3,165.28 = 649.32 : x
  2. Step 2: Convert to fraction form
    2,110.15/3,165.28 = 649.32/x
  3. Step 3: Cross multiply
    2,110.15x = 3,165.28 × 649.32
  4. Step 4: Simplify right side
    2,110.15x = 2,055,266.12
  5. Step 5: Solve for x
    x = 2,055,266.12/2,110.15
  6. Step 6: Final answer
    x = 973.99

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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.