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Finding the Fourth Proportional to 895.16, 1,234.14 and 770.24

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Solution

The fourth proportional to 895.16, 1,234.14 and 770.24 is: 1,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    895.16 : 1,234.14 = 770.24 : x
  2. Step 2: Convert to fraction form
    895.16/1,234.14 = 770.24/x
  3. Step 3: Cross multiply
    895.16x = 1,234.14 × 770.24
  4. Step 4: Simplify right side
    895.16x = 950,583.99
  5. Step 5: Solve for x
    x = 950,583.99/895.16
  6. Step 6: Final answer
    x = 1,061.92

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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.