Home / 1,482.32-2,045.57-819.15

Finding the Fourth Proportional to 1,482.32, 2,045.57 and 819.15

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Solution

The fourth proportional to 1,482.32, 2,045.57 and 819.15 is: 1,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.32 : 2,045.57 = 819.15 : x
  2. Step 2: Convert to fraction form
    1,482.32/2,045.57 = 819.15/x
  3. Step 3: Cross multiply
    1,482.32x = 2,045.57 × 819.15
  4. Step 4: Simplify right side
    1,482.32x = 1,675,624.57
  5. Step 5: Solve for x
    x = 1,675,624.57/1,482.32
  6. Step 6: Final answer
    x = 1,130.41

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1.5x scale

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.