Home / 3,253.48-4,490.18-1,927.65

Finding the Fourth Proportional to 3,253.48, 4,490.18 and 1,927.65

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Solution

The fourth proportional to 3,253.48, 4,490.18 and 1,927.65 is: 2,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.48 : 4,490.18 = 1,927.65 : x
  2. Step 2: Convert to fraction form
    3,253.48/4,490.18 = 1,927.65/x
  3. Step 3: Cross multiply
    3,253.48x = 4,490.18 × 1,927.65
  4. Step 4: Simplify right side
    3,253.48x = 8,655,495.48
  5. Step 5: Solve for x
    x = 8,655,495.48/3,253.48
  6. Step 6: Final answer
    x = 2,660.38

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Half scale
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Double scale
Find fourth proportional to 3,254.48, 4,491.56 and 1,928.65
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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.