Home / 3,501.15-5,251.70-1,420.67

Finding the Fourth Proportional to 3,501.15, 5,251.70 and 1,420.67

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Solution

The fourth proportional to 3,501.15, 5,251.70 and 1,420.67 is: 2,130.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.15 : 5,251.70 = 1,420.67 : x
  2. Step 2: Convert to fraction form
    3,501.15/5,251.70 = 1,420.67/x
  3. Step 3: Cross multiply
    3,501.15x = 5,251.70 × 1,420.67
  4. Step 4: Simplify right side
    3,501.15x = 7,460,899.28
  5. Step 5: Solve for x
    x = 7,460,899.28/3,501.15
  6. Step 6: Final answer
    x = 2,130.99

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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.