Home / 1,960.32-2,705.12-1,075.92

Finding the Fourth Proportional to 1,960.32, 2,705.12 and 1,075.92

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Solution

The fourth proportional to 1,960.32, 2,705.12 and 1,075.92 is: 1,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.32 : 2,705.12 = 1,075.92 : x
  2. Step 2: Convert to fraction form
    1,960.32/2,705.12 = 1,075.92/x
  3. Step 3: Cross multiply
    1,960.32x = 2,705.12 × 1,075.92
  4. Step 4: Simplify right side
    1,960.32x = 2,910,492.71
  5. Step 5: Solve for x
    x = 2,910,492.71/1,960.32
  6. Step 6: Final answer
    x = 1,484.70

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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.