Home / 3,501.52-5,251.36-1,420.92

Finding the Fourth Proportional to 3,501.52, 5,251.36 and 1,420.92

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Solution

The fourth proportional to 3,501.52, 5,251.36 and 1,420.92 is: 2,131.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.52 : 5,251.36 = 1,420.92 : x
  2. Step 2: Convert to fraction form
    3,501.52/5,251.36 = 1,420.92/x
  3. Step 3: Cross multiply
    3,501.52x = 5,251.36 × 1,420.92
  4. Step 4: Simplify right side
    3,501.52x = 7,461,762.45
  5. Step 5: Solve for x
    x = 7,461,762.45/3,501.52
  6. Step 6: Final answer
    x = 2,131.01

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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.