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Finding the Fourth Proportional to 895.20, 1,341.36 and 751.20

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Solution

The fourth proportional to 895.20, 1,341.36 and 751.20 is: 1,125.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.20 : 1,341.36 = 751.20 : x
  2. Step 2: Convert to fraction form
    895.20/1,341.36 = 751.20/x
  3. Step 3: Cross multiply
    895.20x = 1,341.36 × 751.20
  4. Step 4: Simplify right side
    895.20x = 1,007,629.63
  5. Step 5: Solve for x
    x = 1,007,629.63/895.20
  6. Step 6: Final answer
    x = 1,125.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.