Home / 3,675.36-5,513.28-1,210.40

Finding the Fourth Proportional to 3,675.36, 5,513.28 and 1,210.40

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Solution

The fourth proportional to 3,675.36, 5,513.28 and 1,210.40 is: 1,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.36 : 5,513.28 = 1,210.40 : x
  2. Step 2: Convert to fraction form
    3,675.36/5,513.28 = 1,210.40/x
  3. Step 3: Cross multiply
    3,675.36x = 5,513.28 × 1,210.40
  4. Step 4: Simplify right side
    3,675.36x = 6,673,274.11
  5. Step 5: Solve for x
    x = 6,673,274.11/3,675.36
  6. Step 6: Final answer
    x = 1,815.68

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Double scale
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Similar ratio
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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.