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Finding the Fourth Proportional to 1,510.57, 2,261.99 and 894.72

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Solution

The fourth proportional to 1,510.57, 2,261.99 and 894.72 is: 1,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,510.57 : 2,261.99 = 894.72 : x
  2. Step 2: Convert to fraction form
    1,510.57/2,261.99 = 894.72/x
  3. Step 3: Cross multiply
    1,510.57x = 2,261.99 × 894.72
  4. Step 4: Simplify right side
    1,510.57x = 2,023,858.41
  5. Step 5: Solve for x
    x = 2,023,858.41/1,510.57
  6. Step 6: Final answer
    x = 1,339.80

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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.