Home / 3,368.59-4,649.12-2,130.19

Finding the Fourth Proportional to 3,368.59, 4,649.12 and 2,130.19

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Solution

The fourth proportional to 3,368.59, 4,649.12 and 2,130.19 is: 2,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,368.59 : 4,649.12 = 2,130.19 : x
  2. Step 2: Convert to fraction form
    3,368.59/4,649.12 = 2,130.19/x
  3. Step 3: Cross multiply
    3,368.59x = 4,649.12 × 2,130.19
  4. Step 4: Simplify right side
    3,368.59x = 9,903,498.28
  5. Step 5: Solve for x
    x = 9,903,498.28/3,368.59
  6. Step 6: Final answer
    x = 2,939.95

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Half scale
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Double scale
Find fourth proportional to 3,369.59, 4,650.50 and 2,131.19
Similar ratio
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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.