Home / 2,235.32-3,068.21-1,981.08

Finding the Fourth Proportional to 2,235.32, 3,068.21 and 1,981.08

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Solution

The fourth proportional to 2,235.32, 3,068.21 and 1,981.08 is: 2,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.32 : 3,068.21 = 1,981.08 : x
  2. Step 2: Convert to fraction form
    2,235.32/3,068.21 = 1,981.08/x
  3. Step 3: Cross multiply
    2,235.32x = 3,068.21 × 1,981.08
  4. Step 4: Simplify right side
    2,235.32x = 6,078,369.47
  5. Step 5: Solve for x
    x = 6,078,369.47/2,235.32
  6. Step 6: Final answer
    x = 2,719.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.