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Finding the Fourth Proportional to 1,510.64, 2,084.68 and 847.49

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Solution

The fourth proportional to 1,510.64, 2,084.68 and 847.49 is: 1,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.64 : 2,084.68 = 847.49 : x
  2. Step 2: Convert to fraction form
    1,510.64/2,084.68 = 847.49/x
  3. Step 3: Cross multiply
    1,510.64x = 2,084.68 × 847.49
  4. Step 4: Simplify right side
    1,510.64x = 1,766,745.45
  5. Step 5: Solve for x
    x = 1,766,745.45/1,510.64
  6. Step 6: Final answer
    x = 1,169.53

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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.