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Finding the Fourth Proportional to 1,651.84, 2,279.46 and 953.44

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Solution

The fourth proportional to 1,651.84, 2,279.46 and 953.44 is: 1,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,651.84 : 2,279.46 = 953.44 : x
  2. Step 2: Convert to fraction form
    1,651.84/2,279.46 = 953.44/x
  3. Step 3: Cross multiply
    1,651.84x = 2,279.46 × 953.44
  4. Step 4: Simplify right side
    1,651.84x = 2,173,328.34
  5. Step 5: Solve for x
    x = 2,173,328.34/1,651.84
  6. Step 6: Final answer
    x = 1,315.70

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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.