Home / 1,482.72-2,042.24-1,376.40

Finding the Fourth Proportional to 1,482.72, 2,042.24 and 1,376.40

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Solution

The fourth proportional to 1,482.72, 2,042.24 and 1,376.40 is: 1,895.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,482.72 : 2,042.24 = 1,376.40 : x
  2. Step 2: Convert to fraction form
    1,482.72/2,042.24 = 1,376.40/x
  3. Step 3: Cross multiply
    1,482.72x = 2,042.24 × 1,376.40
  4. Step 4: Simplify right side
    1,482.72x = 2,810,939.14
  5. Step 5: Solve for x
    x = 2,810,939.14/1,482.72
  6. Step 6: Final answer
    x = 1,895.80

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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.