Home / 1,953.32-2,695.70-1,069.12

Finding the Fourth Proportional to 1,953.32, 2,695.70 and 1,069.12

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Solution

The fourth proportional to 1,953.32, 2,695.70 and 1,069.12 is: 1,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,953.32 : 2,695.70 = 1,069.12 : x
  2. Step 2: Convert to fraction form
    1,953.32/2,695.70 = 1,069.12/x
  3. Step 3: Cross multiply
    1,953.32x = 2,695.70 × 1,069.12
  4. Step 4: Simplify right side
    1,953.32x = 2,882,026.78
  5. Step 5: Solve for x
    x = 2,882,026.78/1,953.32
  6. Step 6: Final answer
    x = 1,475.45

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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.