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Finding the Fourth Proportional to 1,510.80, 2,084.73 and 847.52

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Solution

The fourth proportional to 1,510.80, 2,084.73 and 847.52 is: 1,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.80 : 2,084.73 = 847.52 : x
  2. Step 2: Convert to fraction form
    1,510.80/2,084.73 = 847.52/x
  3. Step 3: Cross multiply
    1,510.80x = 2,084.73 × 847.52
  4. Step 4: Simplify right side
    1,510.80x = 1,766,839.95
  5. Step 5: Solve for x
    x = 1,766,839.95/1,510.80
  6. Step 6: Final answer
    x = 1,169.47

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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.