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Finding the Fourth Proportional to 1,576.48, 2,364 and 1,020.28

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Solution

The fourth proportional to 1,576.48, 2,364 and 1,020.28 is: 1,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.48 : 2,364 = 1,020.28 : x
  2. Step 2: Convert to fraction form
    1,576.48/2,364 = 1,020.28/x
  3. Step 3: Cross multiply
    1,576.48x = 2,364 × 1,020.28
  4. Step 4: Simplify right side
    1,576.48x = 2,411,941.92
  5. Step 5: Solve for x
    x = 2,411,941.92/1,576.48
  6. Step 6: Final answer
    x = 1,529.95

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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.