Home / 3,118.63-4,303.38-1,774.21

Finding the Fourth Proportional to 3,118.63, 4,303.38 and 1,774.21

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Solution

The fourth proportional to 3,118.63, 4,303.38 and 1,774.21 is: 2,448.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.63 : 4,303.38 = 1,774.21 : x
  2. Step 2: Convert to fraction form
    3,118.63/4,303.38 = 1,774.21/x
  3. Step 3: Cross multiply
    3,118.63x = 4,303.38 × 1,774.21
  4. Step 4: Simplify right side
    3,118.63x = 7,635,099.83
  5. Step 5: Solve for x
    x = 7,635,099.83/3,118.63
  6. Step 6: Final answer
    x = 2,448.22

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Half scale
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Double scale
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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.