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Finding the Fourth Proportional to 2,347.32, 3,519.90 and 1,048.80

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Solution

The fourth proportional to 2,347.32, 3,519.90 and 1,048.80 is: 1,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.32 : 3,519.90 = 1,048.80 : x
  2. Step 2: Convert to fraction form
    2,347.32/3,519.90 = 1,048.80/x
  3. Step 3: Cross multiply
    2,347.32x = 3,519.90 × 1,048.80
  4. Step 4: Simplify right side
    2,347.32x = 3,691,671.12
  5. Step 5: Solve for x
    x = 3,691,671.12/2,347.32
  6. Step 6: Final answer
    x = 1,572.72

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1.5x scale

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.