Home / 1,485.49-2,225.40-900.67

Finding the Fourth Proportional to 1,485.49, 2,225.40 and 900.67

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Solution

The fourth proportional to 1,485.49, 2,225.40 and 900.67 is: 1,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.49 : 2,225.40 = 900.67 : x
  2. Step 2: Convert to fraction form
    1,485.49/2,225.40 = 900.67/x
  3. Step 3: Cross multiply
    1,485.49x = 2,225.40 × 900.67
  4. Step 4: Simplify right side
    1,485.49x = 2,004,351.02
  5. Step 5: Solve for x
    x = 2,004,351.02/1,485.49
  6. Step 6: Final answer
    x = 1,349.29

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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.