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Finding the Fourth Proportional to 1,798.88, 2,482.45 and 1,100.25

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Solution

The fourth proportional to 1,798.88, 2,482.45 and 1,100.25 is: 1,518.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.88 : 2,482.45 = 1,100.25 : x
  2. Step 2: Convert to fraction form
    1,798.88/2,482.45 = 1,100.25/x
  3. Step 3: Cross multiply
    1,798.88x = 2,482.45 × 1,100.25
  4. Step 4: Simplify right side
    1,798.88x = 2,731,312.86
  5. Step 5: Solve for x
    x = 2,731,312.86/1,798.88
  6. Step 6: Final answer
    x = 1,518.35

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Double scale
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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.