Home / 3,501.09-5,248.40-1,311.26

Finding the Fourth Proportional to 3,501.09, 5,248.40 and 1,311.26

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Solution

The fourth proportional to 3,501.09, 5,248.40 and 1,311.26 is: 1,965.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.09 : 5,248.40 = 1,311.26 : x
  2. Step 2: Convert to fraction form
    3,501.09/5,248.40 = 1,311.26/x
  3. Step 3: Cross multiply
    3,501.09x = 5,248.40 × 1,311.26
  4. Step 4: Simplify right side
    3,501.09x = 6,881,984.19
  5. Step 5: Solve for x
    x = 6,881,984.19/3,501.09
  6. Step 6: Final answer
    x = 1,965.67

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Double scale
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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.